Last week Google issued a statement that Google Video and YouTube would remain independent and that YouTube videos would benefit through inclusion in the Google Video Search Index. Leveraging our daily data on market share and clickstream, here’s a quick analysis on the synergies between the two sites.
On the Saturday prior to the Google Video index integration (January 20th) YouTube received .54% of all Internet visits in the U.S. , and 37.98% of all visits to the Entertainment – Multimedia category. For the Saturday following the integration (January 27th) YouTube’s market share rose to .64% for all site visits in the U.S. a one week growth rate of 18.5%.
Here’s the market share chart:

To what Degree was Google Video responsible for that 18.5% Increase? On Wednesday January 24th, the day before the index integration went live, Google Video was responsible for .73% of all of YouTube’s traffic, by Saturday Google Video was responsible for 8.68% of all of YouTube’s upstream traffic (MySpace is still the #1 upstream provider of traffic to YouTube @ 17.54% of all traffic for that same day).