Is Wikipedia a trusted source of information?

Wikipedia is great for general knowledge. Sometimes when I have free time on my hands I just read a random article on Wikipedia or just pick a random topic and learn some new facts about it that I never knew before. The problem with Wikipedia arises when you get to articles like the abortion article, the stem cell research article, etc. In those type of articles, it's a battle of who can fit in the most bias for their side. Wiki style is alot like politics. ;)