StumbleUpon – Firefox Extension
Stumble Upon is a great extension for the Firefox Web browser.
It lets you “channel surf” the net by throwing up random web sites that others have liked. Great for when I can’t think of what to look up. You set a number of categories of things that you’re interested in like multimedia, cats etc, and whenever you push the button, you get a random site of interest. You can also vote for the sites you like or don’t to help others.