Wikipedia can be edited by anyone, but then anyone can be a reviewer. If you have verifiable evidence, as long as you add it to the article, it's acceptable. Knowing to look at the references rather than the article is a good way to use Wikipedia, as the article may need editing. I've lost hours surfing the different topics on there, and found so much information that my brain can't take it all in! I'd love to do a 6-degrees of separation of the articles on there!
