WIKIPedia

WIKIPedia is just one big wiki the whole world is allowed to manipulate. I use WIKIPedia at least once a month and while it is not 100% accurate it is a good way to get regular facts quickly. I can count on it to usually be correct and, if not, I don't usually put all that much at state.

In education I think I would get students to use WIKIPedia as a starter point. The students would be well aware that this site is not always accurate but can give some handy points to start from. Students would then need to investigate information they found on WIKIPedia though more authoritative sources.