Not surprisingly, clips from YouTube made up 20% of the searches--a nod to the wealth of video content that the Google property has amassed. But Microsoft and Ask didn't cull
their videos from the user-generated giant, instead snagging results from their own video search engine and aggregators like Blinkx, respectively.
Both Google and Yahoo seemed to be of the same mind when it comes to the integration of video into the results, as an actual video replaced one or more of the first 10 links on the SERP. In contrast, Microsoft and Ask place the videos above the organic results (particularly when the "video" modifier is part of the query)--perhaps assuming that this is the most relevant way to display the info when users blatantly ask for it.