Corbis offers Bloggers Ads with Corbis Images embedded in them ;-)

Corbis, Mr. Billy Gate's stock photography house, will allow users to download images for their blogs from its website free of charge. Butttttt.....

And there is always a but in these things. The catch is that each photo which is downloaded will either include an ad overlay on part of the image, or embedded advertising that pops up when a Web user runs a cursor over the picture. Each photo that is downloaded will also come with an embedded banner advertisement beneath the photo. The service will allow people with blogs to add copyrighted images legally, said CEO Gary Shenk at the Reuters Media Summit in NYC on Tuesday. The service is in beta testing right now.