Need some good quality images to decorate your blog posts? Wait for some days, and you will be able to use a great service! Stock photography company Corbis and its digital rights partner, PicScout, will allow bloggers to access photos via a Web link from the site PicApp.com. Bloggers can use their images for free in exchange for showing some advertising embedded into the photos.

Reuters reports that photos 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. PicApp will also offers bloggers the opportunity to earn ad revenue based on how many times Web users click on the images posted to their blogs. PicApp is still in Beta

“We work with a partner so that those pictures are tracked, and if they’re being used illegally, we can figure that out. But as long as they are downloaded through this application, you’re legit and you’re ready to go,” Corbis Chief Executive Gary Shenk told the Reuters.

Corbis is a privately held company, founded by Microsoft Chairman Bill Gates in 1989. Corbis also has an online market for user-generated photos at SnapVillage.com. So a big opportunity is coming for bloggers. Use good quality images for free, on your blogs and earn some extra ad revenue!