If you spend time interacting with others online, you start to realize just how dependent people are becoming on “just look it up!” as compared to actually knowing things.
Atlantic Monthly has this story about a college professor havingShia students craft plausible – but fake – history and see how far they can get in establishing their fake history into Wikipedia
http://m.theatlantic.com/technology/archive/2012/05/how-the-professor-who-fooled-wikipedia-got-caught-by-reddit/257134/
Possibly related, in about a week, Wikipedia is changing their terms of use – from what I think I read, it sounds like they intend to more closely scrutinize who can edit and stop people from creating wiki clones to spam Google