You might have seen this before, but Add-Art is a Firefox Add-On [ https://addons.mozilla.org/en-US/firefox/addon/6846] which works with AdBlock Plus, and replaces all the ads on a webpage with Artwork from a "Curated Database updated every two weeks with new content."

Add-Art is partially supported by the New Museum/Rhizome in New York City.

http://add-art.org/files/images/addart-demo.gif

I think it's a nice way to support artists and bring a little culture into our web browsing :)

Video Demonstrating Use: http://vimeo.com/1075987 (do non-YOuTube videos embed?)

Download: https://addons.mozilla.org/en-US/firefox/addon/6846

Great idea! I'll try it if I recover my computer :)