Good morning, and thank you for joining us today for our second quarter earnings call. I'm sorry for the slight delay in getting going this morning, but the city began jack-hammering outside my office right at 5 of 11:00, so we'll keep it moving. And as you know, I always keep these calls very short. As we reach the midpoint of the year, I feel that we can say that our expanded focus investment into the multifamily sector is clearly succeeding. In fact, while our acquisition of LoopNet was widely heralded as a major success, I believe that we are potentially having an even greater success meeting the marketing and information needs of the multi-trillion dollar multifamily industry. In a relatively short period of time we have changed the competitive apartment Internet services landscape for both the companies seeking to provide marketing solutions, and for the companies seeking to provide information analytics solutions. I believe we have brought a greater level of commitment and conviction than our competitors have. We are using the playbook we capitalized on with the LoopNet CoStar merger, integrating and leveraging a powerful information solution to build a superior marketing platform and vice versa. And accordingly we are achieving dramatic selling success. To price optimally, the multifamily owner needs daily competitive rental information, which none of the legacy information providers are adequately supplying. With the benefit of our research and technical expertise in our Apartments.com marketplace, we are providing the users deep content with daily pricing on tens of thousands of apartment communities. To minimize vacancy losses, the multifamily owner needs a steady stream of qualified leads, and to achieve that they need to reach the largest possible audience of renters. By leveraging our technology and content, and by initiating the first ever significant business consumer apartment marketing campaign, reaching tens of millions of potential renters, we have built the most heavily trafficked apartment Web site. We believe we have the best-in-class information and marketing solutions, and by packaging them together we offer the most compelling lowest-cost solution. With that powerful combination, we are taking a lot of business from a range of competitors. We hit the ball out of the park on second quarter sales. We achieved our highest sales quarter, with 34 million in companywide net bookings. That's a 95% year-over-year increase in net bookings over the second quarter of 2014. And we're up 66% sequentially over net bookings of 21 million in the first quarter of 2015. This marks two consecutive quarters in which we have achieved tremendous sales levels. Net new sales on annual subscription contracts were 25 million for the second quarter of 2015, up 59% over the second quarter of 2014. This was by far our strongest quarter of annual subscription sales in our company's history. Our revenue increased 16% year-over-year, to 171 million in the second quarter 2015, compared to 148 million in the second quarter of 2014. Our annual subscription business continues to enjoy a very high trailing 12 months renewal rate of 91%. We closed the acquisition of ApartmentFinder on June 1st. Like Apartments.com, ApartmentFinder is one of the leading digital marketplaces serving millions of renters looking to connect with apartments. ApartmentFinder's service offerings include digital advertising on ApartmentFinder.com, with approximately 13,400 properties advertised on its Web site. ApartmentFinder's core marketplace revenue was approximately 68 million to 70 million for the fiscal ended -- ending in March 2015. ApartmentFinder will remain a distinct complementary brand to Apartments.com, with a unique user interface, but will be similarly powered by CoStar's information. The brand will focus on the sizable component of renters who are focused primarily on finding the best financial deal possible. And these are people at all different sorts of income levels. We know from various studies that most apartment hunters use the Internet to look for an apartment, and most of those renters visit multiple sites in their search for an apartment. By offering multiple online marketing solutions, we believe property managers and owners will get more exposure for the listings; more leads cast a wider net. CoStar expects, by the end of this year, to have integrated the back ends of Apartments.com, CoStar, and ApartmentFinder, thereby leveraging the same research, systems, support, and sales platform to power Apartments.com, ApartmentHomeLiving, CoStar, and ApartmentFinder.com. We anticipate that this will create cost synergies and greater operating efficiencies. Work on this integration is well underway, and we expect to complete it this year. ApartmentFinder has approximately 110 field sales representatives located across the United States. CoStar has combined its sales forces, and already the advertising sales forces are cross selling all of our apartment marketing solutions. I've had the opportunity to spend a significant amount of time with the ApartmentFinder sales force, and I feel that they are a very valuable addition to our sales force, with tremendous selling capabilities and customer relationships. As previously mentioned in other calls, we are in the process of eliminating the print component of ApartmentFinder. Print is a less and less effective way to market apartments nowadays. Print produces a very small percentage of ApartmentFinder's leads, and is disproportionately laborious and expensive. We plan to eliminate these costs or those costs this year, and invest an equivalent amount into digital marketing to drive greater digital traffic to the Finder site. During the process of converting those ApartmentFinder clients that are buying a combination of print and digital marketing, as we move them into pure digital, we will be carrying the expense of both print and the replacement digital investment. This is to be able to show the clients that we have more than replaced the leads lost from print with the enhanced digital marketing. In the first full month that our sales team has been converting these combination accounts into pure digital, we have converted 15% of the business or over a thousand and some contracts. This will be one of our sales team's highest priorities this year, and I believe it's a manageable task. We are keenly focused on expanded online marketing efforts for ApartmentFinder, and it is working. In just our first month of owning ApartmentFinder, a combined team of existing Finder staff and CoStar staff have successfully driven significant increases in traffic to ApartmentFinder, accelerating visits to the site an astounding 135% year-over-year. And that's just for June of 2015. This was exceptional progress considering that ApartmentFinder visits grew in the single digits year-over-year, in April and May. Additionally, ApartmentFinder unique visitors increased 64% year-over-year in June of 2015. In order to offer a simple, but powerfully compelling value proposition, we're marketing our digital apartment marketplace offerings as one apartment network. And a private manager who had been advertising on ApartmentFinder earlier this year would've received the benefits of a site that generated about 2 million unique visitors a month, and a print distribution of a 1000 books -- a couple of thousands books in a market. Once they're converted into a pure digital contract, their apartment ad will run on ApartmentFinder, Apartments.com, ApartmentHomeLiving. Then the advertiser will receive the benefit of three sites with combined unique monthly visitors of approximately 14 million. That is approximately a 700% traffic increase for those converted advertisers. We believe that with this sort of unparalleled exposure we will convert the majority of ApartmentFinder's combination print and digital business to pure digital by year's end. As we achieve this goal, we also expect to achieve significant cost savings. Okay, at this point I'll put my glasses on, which should help. And of course, we're sitting here in a conference that is lead [ph] platinum certified, which means it has no light. Okay, back to the call. ApartmentFinder offered a social media marketing service called Finder Social. The service was not profitable, and in fact was indirectly competitive with our profitable products. After careful consideration and review we have decided to eliminate Finder Social, and its associated significant costs. We believe the ultimate best value we can provide our clients is delivering the best network of digital apartment marketing Web sites, and the highest quality leads that turn into leases. We believe that once we have eliminated non-core ApartmentFinder products, and have achieved integrated operating efficiencies, ApartmentFinder will be very profitable. We use the National Apartment Association exposition, held in Las Vegas in June, to announce our acquisition of ApartmentFinder, and showcase the tremendous value proposition our network of apartment sites and CoStar marketing analytics can offer. The NAA event was attended by 9,000 multifamily professionals, a record for the event in our prime target audience. We created an enormous amount of buzz in brand recognition. We hosted a never-to-forget client party at the event, with 4,500 clients and prospects attending. Well more than 3,200 attendees visited our booth on the exhibit floor. We gave hundreds of product demonstrations of our integrated multifamily offering, and spoke to thousands of clients and prospects. It was really exciting to see our sales people processing signed contracts well past the end of each day's session after the rest of the conference vendors had left the exposition hall. In just two days we signed 350 new communities. Even better was that our sales people came out of NAA event with multiple follow-up meetings for June and July, which have also resulted in sales. In combination, our Web sites are now generating more than 24 million unique visitors each month. That's the equivalent of every person down under in Australia visiting our Web sites last month. It's quite some traffic. For the fourth month in a row, Apartments.com is the undisputed number one most visited apartment listing site according to each of the four leading traffic authorities; comScore, Experian Hitwise, Amazon Alexa, and Compete. We're just four months into to re-launching and marketing campaign of Apartments.com, and we have established Apartments.com as an absolute leader. Apartments.com has experienced a 70% year-over-year increase in unique visitors and a 65% year-over-year increase in total visits in the second quarter of 2015, according to comScore. In June 2015, we significantly increased the year-over-year traffic to Apartments.com, with over 14 million visits, and 6 million unique visitors. Our own internal Google Analytics numbers show much higher traffic numbers. Even more impressive than the traffic numbers is the behavior of consumers once they come to our sites. Apartments.com is engaging consumers as shown by time spend on site and page views. According to Compete, we had more than three times the number of page views on our site, in June, than Apartment Guide, which was the closest competitor. According to comScore we also had 50% more time spent on our site than Apartment Guide, in June. Clearly customers like what they're seeing on Apartments.com. We are very pleased with our success, and continue to grow traffic for our advertisers. We believe that with more traffic than any of our legacy apartment competitors, many of whom are charging more for less traffic, we can take significant share from our top competitors, who combined have nearly $500 million in revenue. We're already seeing good success in moving advertisers from Apartment Guide, Rent.com, and ForRent into our platform. We're not taking our early successes for granted, and we're working hard to move Apartments.com even further ahead. One of CoStar's strengths is collecting and building content. No competitor is matching us in providing the depth of data that our team of researchers, writers, field researchers, sales force, economists, and analysts are able to generate. We know that on the Internet content is king, and we're taking a number of innovative steps to increase quality and breadth of content on our site, and therefore consumer engagement traffic and, we believe, eventually sales. Our market research indicates that renters place an extremely high value on apartment reviews when they're searching for a new apartment. We know from other successful consumer sites, sites like Yelp, and TripAdvisor, that users really like to provide feedback about their experience, and other users want to be able to read what consumers, like them, are saying. Consumer ratings matter. And just recently Harvard Business Report published a study that found a one star rating increase for restaurants on Yelp correlated to revenue gains of up to 9%. So reviews are really important for folks when they're looking at these apartments. In July, we launched an innovative, in fact, the 21st; we launched an innovative campaign to encourage renters to provide quality reviews of their apartments. Apartments.com will give away free rent for a year to 12 weekly winners. Renters who write reviews that are rated as "Helpful" will also be eligible for free rent-for-life grand prize drawing, which will take place October of this year. We expect that this will -- for this promotion will draw many renters to our websites and drive more value for our advertisers. We are combining these objective consumer ratings with our objective fact-based scoring system driven by the data collected by our researchers. By combining facts and opinions, objective data, and subjective experiences we can create a rating system that we believe renters want. One they can count on to inform them for one of the most important decisions they have to make. As part of our previously announced marketing budget, we have also initiated a national marketing campaign to promote the newly released review functionality at Apartments.com. We're promoting this campaign on national and local television, cable T.V., digital, local radio, and social media. Our advertising customers have been given tools and resources to promote the campaign within their own communities. Prior to the campaign, it took Apartments.com three years to collect 12,000 reviews. We surpassed that number in the first 36 hours of this new campaign. At this very early stage in the campaign we have 35,000 reviews submitted. I've read through them, and many of them are really quite good. And that the cost per review, I estimate, is running about $20-$30, which is a really good value. In another technology innovation in the apartment space, we have been adding immersive 3D virtual tours for apartments to Apartments.com site with a technology known as Matterport. It's great technology. Renters can virtually walk through the apartment, and get a true feeling for the space in a unique way that pictures and floor plans do not capture. Property managers and renters love them. We now have over 20,000 Matterport 3D images on the Apartments.com Web site, and we're adding approximately 1,500 per week. We have almost reached 2 million renter views of these 3D immersive apartment walkthroughs, so they're really working. Accurately advising our clients on new construction will bring new supply and competition to the market is an important value proposition for CoStar Market Analytics. And additionally, we generally drive 6000 or more per year for each property in the critical marketing phase post construction around initial lease-up. While tracking new construction has always been a strength of ours, we are working to build an ever more accurate picture by flying over U.S. cities to monitor new construction in a way not possible with Google Maps, commercial satellites or ground based researchers. We have expanded our field research fleet to include a Cessna aircraft equipped with a seriously state-of-the-art augmented reality computer software and camera systems. It will help us survey commercial real estate in a way that's never been done before. In the first 10 days we've completed four test markets. And during these 10 days we discovered and added over 100 new construction properties, 8.6 million square feet of new construction, and 2,375 new multifamily units to the CoStar database. Clearly this will add to the depth and richness of our database, and provide valuable information about upcoming supply in the marketplace. Several of our clients and prospects were given demo flights at NAA, and even one was moved to sign a contract worth several hundred thousands of dollars in the plane, up in the air. Great thing is it was a researcher that asked for the business, not the sales person. Our advertising agency, RPA and a third-party independent research firm has been providing us with detailed analysis from the first four months of Apartments.com national campaign. Till the end of June, the campaign has created over 3 billion impressions, including 1.9 billion digital impressions, and 7.2 million social media ad engagements. As of June 2015, compared to February 2015, our awareness is up more than 50%, with a quarter of the respondents listing Apartments.com in the top four mentions. In June, Apartments.com was ahead of all other apartment listing sites in awareness, with only Craigslist edging us out. In several key markets, like Philadelphia, Houston, Los Angeles, and Phoenix we experienced 100% growth in awareness. Three of four competitor apartment listing sites declined significantly in awareness over the last four months. Equally as impressive is the growth of intentions for Apartments.com, which nearly doubled from 11% in February, to 21% in June. The perception of Apartments.com as a leader surpassed key competitors, and ranks in the top three based on the same study, with the strengths being characterized as smart, an ally, honest, and trustworthy. Ultimately, the best judge of success of the campaign though is sales. And clearly the second quarter of 2015 and June, were all-time highs in sales, casting a vote of confidence for the effort. In addition to the work done by our agency, each of the past three years, Apartments.com has commissioned an independent national study that surveys multifamily professionals across the country about their use and attitudes about leading apartment listing services. This year's survey period covers the first 60 to 90 days after our national advertising campaign began. So it captured the trade's initial reactions to the new Apartments.com Web site. Nonetheless, we learned a lot of interesting things, and I want to share some of those highlights with you. We asked apartment listing sites trade professional -- when we asked folks which sites they were familiar with, the survey showed that Apartments.com is now tied for a first place with Craigslist. Aid awareness for Apartments.com was 94%, up 200 basis points from the prior year, while Craigslist was down 200 basis points. All three of our largest competitors, by revenue, saw declining awareness. 30% of survey respondents selected Apartments.com as the most effective source of quality prospects, while 24% selected Apartment Guide, 22% selected Craigslist, and 4% selected Rent.com. Apartments.com achieved a positive net most effective score of 22% when the survey respondents were asked to select the most effective advertising platform for delivering quality prospects. Craigslist net effective score was the worst, at negative 14% because of low quality of leads. Zillow, Trulia, and Rent.com, all were negative as well. Our net value score climbed into the number one position, at 19%, while Craigslist and Apartment Guide came in at 7%. While other primary competitors, including Rent.com, were in negative territory. If you look at trends on net value, it really points to how well we're doing. Craigslist net value dropped from 31% in '13, to 7% in '15. Apartments increased from 5% in '13, to 19% in '15. Our marketing campaign has been very effective in reaching potential clients, with 93% of survey respondents indicating they had very high awareness of the campaign; can't drown it out. Since the launch of our new multifamily services, cross sales of our Apartments.com, and our multifamily debt and equity information analytics product, CoStar Market Analytics, shows similar potential to the success we had in cross selling between CoStar and LoopNet. CoStar Market Analytics has been significantly contributing to driving sales of Apartments.com. The insights provided by CoStar Market Analytics are extremely popular with apartment managers and owners, and we're able to help them identify rental trends more quickly and with better accuracy. Year-to-date, and since the launch of the new services four months ago, we have sold $8 million of annual subscription combined packages of Apartments.com and CoStar Market Analytics; $8 million of cross selling activity. With a full four months behind us, we are more confident than ever about our strategy and execution in apartments' rentals marketplace. Sales are growing as a result of providing an excellent destination and positive consumer experience for renters, which in turn is causing property managers and owners to advertise their properties with us. A quick update on LoopNet; LoopNet marketplace remains vibrant as we rapidly approached 10 million registered LoopNet members, average monthly searches are up 30% year-over-year. During the quarter, sales increased just over 6 million annualized value of new businesses on LoopNet. There was a component of that that is connected with an accounting change, but the revenue continues to grow. After we complete the software integration of ApartmentFinder, late this fall, we plan to move to integrating the LoopNet land and CoStar backend databases together. We believe this will allow us to significantly reduce research costs, improve data quality, and position us to most effectively migrate remaining LoopNet Premium searchers to the CoStar platform. In preparation for that migration, we continue to seek and are achieving higher prices per user in an effort to reduce internal competition and cannibalization. Year-over-year, our average new selling price per Premium user has increased 45%, from $98 to $142. On July 1, CoStar completed the acquisition of a Madrid, Spain based commercial real estate information provider, called Belbex. Though very small and young, Belbex is the leading commercial real estate data service in Madrid. And we believe that with time we can grow it to become a significant business for our European operations. Madrid is both the third largest city and metropolitan area in Europe, so it's a valuable chess piece in a longer run strategy. We plan to invest in the business, but that is not expected to have a material impact on our overall financials. The new company will be managed out of our London office, and will be led, in Spain, by Belbex's Manager, Juan Menduina. Because of the scale of the market, as well as our leadership team in both London and Spain, I'm very optimistic about the business potential of our growing European operations. Finally, I want to share a few recognitions our team has recently earned. For the second year in a row, CoStar Group has been recognized by Forbs Magazine as one of the most innovative growth companies in the world. Citing our rate of innovation, and sustained appeal to investors, Forbs ranked CoStar number 15 in the annual ranking of the top 100 most innovative companies. Up from, I believe, the 27th position, and ranked us among the top 10 most innovative companies in the software and services category. Jon Coleman and our legal team have been including in the National Law Journal's annual roundup of Washington legal departments of the year, recognizing the company's superior in-house legal team. Our legal team was winner in the big deals category, and recognized to successfully supporting the company through several major recent acquisitions. Finally and most importantly, CoStar Group was named by The Washington Post as one of the best places to work in the Greater Washington Area. We were recognized in the large company category of the Post's prestigious top workplaces 2015 list. The top workplaces are based solely on employee feedback, with a survey conducted by WorkplaceDynamics, an independent research company. Factors concerned include employee satisfaction, with benefits, their job and corporate leadership. The economic strength of the U.S. and its real estate, especially compared with international options drove an exceptionally large flow of capital U.S. commercial real estate sector in the first half of 2015. Specifically, 208 billion in sales in that time was 27% higher than a year earlier. It's the highest since 2007. Fundamentals in the market continue to be strong, and occupancy rates for all the major property types are at the highest level, since '08. Corresponding to strong occupancy rates, rental rates grew well over inflation, ranging from 2.6% for retail, to 5.1% for logistics. Year-over-year gains for office and logistic rents hit their highest point in this recovery. In response to stronger rents and occupancies, new construction has increased especially apartment, office, and warehouse. So far demand is still growing faster than supply. However, with the exception of the apartment market, we believe most markets should see declining occupancy rates over the next year. The apartment sector performed solidly. Net absorption was up 11% in the first half of '15, from a year earlier. A high number of household formations drove the demand for apartments, and allowed vacancy rates to decline to the real estate cycle low of 3.7. And year-over-year rent growth of 3.8% is up from 2.8% one year earlier. In the office sector, net absorption of 38 million in square feet in the first half of 2015 was up 4% from a year earlier, the highest net absorption rate of this real estate cycle. The 60 basis point decline in vacancy, to 11.2% over the past year, allowed office rent growth to hit 4%. A 35% increase in office sales has been especially good for commission-based brokerage clients. The story of strong demand, high occupancy, and high investment sales volumes is similar for other real estate sectors, including retail, logistics, light industrial, hospitality, and specialty. The broad-based strength in both fundamentals in sales has helped support increased demand for CoStar products and services. I'm very pleased of what we've achieved in the first half of '15. The second quarter of 2015 was exceptionally strong, as our powerful sales team is driving all-time high sales; congratulations to Max and his team. We are well on our way to 1 billion in revenue and 40% margin in 2018, and we'll continue to actively grow our powerful commercial real estate platform. We believe we are exceptionally positioned for strong growth and financial success for many years to come. Gosh, on that note I'll turn it over to Brian Radecki, our Chief Financial Officer. Okey-dokey, go with that Brian.