Google continues to be the 800 lb Gorilla in the paid search world:

Google’s share of the U.S. Web search market continues to edge beyond Yahoo and Microsoft, according to the latest monthly numbers released by analysis firm ComScore Networks.

The search giant’s market share among home, work and university Internet users climbed from 42.7 percent to 43.1 percent from March to April of this year–up from 36.5 percent in April 2005, ComScore said Monday.

In second place, Yahoo saw its market share hold steady at 28 percent between March and April, a decrease of 2.7 percent from last year. Less than 6 percentage points separated Google’s and Yahoo’s respective market shares in April 2005. (From CNET News.com)

Google’s innovations now include distributing online video ads which will debut later this week:

The video expansion, announced late Monday, will affect thousands of Web sites that rely on Google to post ads related to the surrounding material on a page. For instance, a news story about housing might prompt Google to display an ad for real estate agents. (Read full article)