Google is expanding the pool of companies that will showcase video ads on its AdSense publisher network to include The Wall Street Journal, two Conde Nast Web sites and Life/Style Television, a Google spokesman confirmed on Wednesday.

The search giant sent e-mails to some of its Web site publisher customers this week offering them the opportunity to participate in a pilot program involving video ads from The Wall Street Journal online, Life/Style Television and Conde Nast's Epicurious.com and Style.com. The ads will be contextually targeted to the content on the Web sites.

Google is broadening a test announced on Monday in which it said it would run ads from Sony BMG Music Entertainment and Warner Music on its publisher customer sites, said Google spokesman Brandon McCormick. Revenue will be divided three ways, between the content owner, the Web site publisher and Google, and ads will be billed on a cost-per-thousand impressions model, like traditional display ads.

Read more: ZDNet