Wikipedia is a great site...it allows users to access a free, user written and edited encyclopedia. Over 500,000 topics are in the encyclopedia, and you can research just about everything. It is like having the World Book Encyclopedia...the only difference is it's FREE! The only problem i have with Wikipedia is that its user-generated content, which i'd say is accurate most of the time, but about 10% of the time its not. Overall, Wikipedia is a cool resocurce to use. It has NOOOO Ads, a HUGE plus!