Which reference sites do you trust?
 

While completing the tech edit on the 2nd edition of the PHP Anthology the issue of linking came up; specifically, linking to authoritative reference material on the web. It came up because I would often link to a Wikipedia page and half of the editing team were opposed to such preferential treatment of one web [...]
http://www.pheedo.com/img.phdo?i=1a1...1ace460bf9843b

Wikipedia has errors in it. I wouldn't exactly trust them if I needed something 100% legit.

I agree that wikipedia can't be trusted 100%, but with a little due diligence, you can track down the article sources from the annotations and get a solid source most times.