Besides its own videos (including YouTube's), Google Video now also indexes videos from several rivals including MySpace, Metacafe, BBC and Yahoo Video.
Previews are available next to search results that are hosted on YouTube or Google Video and thumbnail snapshots are available for content hosted by other providers. Much like Google image search, a frame with relevant Google-provided functionality appears at the top of the window when the user clicks through a search result.
Following Google's acquisition of YouTube in 2006, many questions emerged about the future of Google's own video service. These questions were largely answered early this year, when Google expanded its video service to include YouTube search support and revealed plans to expand video search functionality to support a broad assortment of other sites as well. These plans are now coming to fruition as the scope of the Google Video search index broadens to cover content hosted outside of the company's web empire.