Neato. Just discovered Webmynd and I really like it. From the site:

Personalize your search — Visualize your browsing. WebMynd helps you find and keep track of information from the sources that you most value. Personalize the right-hand side of Google with sources such as Wikipedia, YouTube, Twitter, Flickr, Amazon, and your WebMynd visual browsing history. Record your browsing like a DVR for the web with easy privacy configuration.
See images, reviews and download for Firefox here.