Okay, great, two good questions. So in terms of Sites revenue, we are very pleased by the strength. It was broad-based. It had two real drivers, first, our ongoing focus on improving the experience for advertisers and users. And we introduced a number of enhancements, including format changes in ad tools. I think the most important point is that no one enhancement came close to the magnitude of the changes that we made in the third quarter of last year. That's why we kept calling out the 2015 change. And what's been gratifying is in the aggregate the results reflect the benefit of ongoing innovation. But very importantly, it wasn't one particular item. The second contributor is the secular shift to mobile, and we continue to benefit from that, be an important part of enhancing opportunities for engagement. As we look forward to the fourth quarter, I think that was part of your question as well. I think the only thing to point out is that in looking at growth rates, we're obviously at a higher revenue base versus last year, so that to us is an important point. It may be obvious, but important to note there. In terms of Fiber, the impetus for it was really about the opportunities that we see to focus on innovation, and what does that mean if the objective with Other Bets is really these 10X opportunities. And when you go back to the initial impetus for creating the business, it was the founders' view that there's a sizable opportunity given the need for abundant connectivity on networks that are always fast and always open, and we do continue to be committed to that vision. The team had some important breakthroughs in new technologies. You noted the most important in our view, all that we're doing with wireless, but also technologies that are key to implementation. And we believe that both of those, a number of things they're doing enhance both our effectiveness and efficiency. And so we wanted to focus on the potential with these efforts before we reaccelerate deployment. And it was about ensuring that we can take advantage of those before again pushing forth. We were very active in a lot of cities in the third quarter alone. We rolled out four new cities, so that brings us to 12 cities across the U.S. where we're deployed, in construction, or in development, and we're making great progress in those cities. We remain very committed to growth across those cities. And then we also have a presence in six cities with our wireless acquisition, Webpass. So we're pausing for now our work in eight cities where we've been in exploratory discussions. But very much to your question, it's to better integrate some of the technology work we've been developing, and there's more detail on the cities on the Fiber side to the extent you want to go into those.