I've noticed that lately I've been linking to Wikipedia a lot. Mostly it's because we just learned how to use wikis in our technology class. We have to do a stupid huge project on it too (Interlibrary Loan Technology - will the excitement ever end).
Did you know you can create your own wiki? They're pretty cool tools actually. Check out this 'how-to' video from commoncraft:
And now go make your own...