MediaWorks: What is the status of Google's video-search capability?
Marissa Mayer: We're really excited to have the addition of YouTube, because video search could advance a lot. Right now we're seeing relevance, but being able to understand what a video is about really requires there to be some technological advances. Now we're using tagging to interpolate that.
MediaWorks: How far along is YouTube in filtering out copyrighted and offensive material, and what steps will Google take to accelerate that process?
Ms. Mayer: Right now we allow people to flag that content. Over time we'll come up with more automated means and methods for [filtering out copyrighted content].
MediaWorks: Is it fair to assume Google will extend its contextual ad network to YouTube videos?
Ms. Mayer: Ultimately we would like to have contextual targeting in place. I'm speculating, but I think there's the ability to do much better contextual targeting if we get a lot of commercial videos uploaded. We might also be able to allow content providers to tell us what videos would run well alongside their video -- which also is, in some ways, more exciting because we may or may not have a personal profile of that person watching; we may or may not understand the context of the video, and be able to do the targeting.
MediaWorks: YouTube's founders have until now considered "preroll" a dirty word. Can the site succeed financially in the long run without preroll video ads?
Ms. Mayer: Right now we're too early in the iteration phase to rule anything either in or out.