Wikipedia

[Joeiss]

Wikipedia is not credible enough to cite it as a reference in a paper. But I like to use it to get some background information on topics I find interesting.

[Typhoid]

Specifically, if it is a credible source?

That depends if you consider a random passer-by's opinion as a credible source also.

[manasecret]

I love the idea that I can briefly change a Wikipedia article to suit my needs for quotation, and then cite it as a legitimate source.

By the way, did you know that gravity doesn't exist on the moon? http://en.wikipedia.org/wiki/Moon

[Professor S]

Wikipedia is good for getting decent casual background information, but as was stated, don't even think about using it for an official source for a paper or anything of the sort.