Agreed. I use Wikipedia for subjects that do not involve any emotion. People are unlikely to lie about programming languages or obscure tv shows from the 70s or stuff like that. I never assume that wikipedia is correct, but occasionally use it as a starting point.
I had to write a short paper on something in my Western Civ class. I can't remember what it was right off of the top of my head, but Wikipedia had more detailed info on it than my textbook did.
I hadn't bought the stupid flyer booklet yet that the professor put together for the class, so I went almost exclusively from Wikipedia.
I got an A too :). This guy never gives A's either.
It was accurate there at least.
If you cannot get emotional about Bayes Theorem better put a mirror to your nose. A truly wonderful treatment.