The Ultimate Directory Of Free Image Sources | Mediawijsheid in het VO | Scoop.it

...When it comes to searching for images for my blog, Bing is the clear winner for one simple reason; while Google and Yahoo also allow you to filter by license types, Bing is the only one that will search strictly public domain images. You can’t beat public domain when it comes to blog images. You can freely modify images, use them commercially, and no attribution (or research into attribution) is needed....