Wiki

Wiki is pretty good on technical subjects.

On politically charged subjects not so good.

OTOH I have come across Encyclopedia Britannica articles that were poorly grounded in the subject matter. I have also known people who have written Encyclopedia Britannica articles. Let me just say: not impressed.

I have edited Wiki articles. What I like to do if I think a part is wrong is to add an alternate view instead of erasing the mistaken bit. Then people can make their own choice.