Google plugs into video advertising

SAN FRANCISCO, California (Reuters) -- Google says it is ready to help Web sites run video advertisements, putting the Web search leader into competition with television for the biggest chunk of ad spending.
The company is seeking to take the pay-per-click model it refined for text ads and apply the approach to video, cleaning up a nascent market where irritating ads that appear uninvited over the main text and then disappear distract users and limit advertisers' desire to spend money on the medium.
Google video ads first appear on Web pages as static screenshots in small television-screen like boxes. Only when a consumer clicks on the screen does the ad begin running inside the box - instead of jumping off the page as many video ads do - giving users control over how much or how little they view.