ReadWriteWeb

Yahoo just announced that it has upgraded its video search product with new features that make it easier to discover music videos. Yahoo Video Search now recognizes and shows the most popular albums and songs whenever a user searches for an artist or band. A sidebar on Yahoo Video Search now displays an artist's most popular albums and songs. The album view then allows users to drill down even deeper and see videos for all the songs on this album.

New numbers are out from Nielsen today on marketshare among the big online video sites. Despite an expected December downturn in total numbers, there were some unexpected changes in the market last month.

The highlights? YouTube viewership grew 9% according to Nielsen, Metacafe grew 27% and Yahoo! Video viewership fell by an amazing 60%.