StumbleUpon: extend your horizons
There’s a really cool plugin for Firefox called StumbleUpon that I recently got into. The idea is that you tell it topics you’re interested in, and it then shows you websites about those topics. You can rate sites (“I like it” or “I don’t like it”), and it then refines its ideas of these websites based on your recommendations (so that it can choose whether or not to show them to other people with similar interests). If you’re looking for some interesting new websites to play with, give this a shot.