I've found wikipedia to be too unreliable and too easy for people to modify with faulty info, and therefore can't support it. I have read various articles on the subject and did a quick search to find this one for now -
The study did reveal inaccuracies in eight of the nine entries and exposed major flaws in at least two of the nine Wikipedia articles. Overall, Wikipedia's accuracy rate was 80 percent compared with 95-96 percent accuracy within the other sources. This study does support the claim that Wikipedia is less reliable than other reference resources. Furthermore, the research found at least five unattributed direct quotations and verbatim text from other sources with no citations.
I had a friend who attempted to demonstrate this once and went to a wikipedia article on the speed of light. He modified the speed of light from 186,000 miles per second to 186,000 miles per hour. He checked it regularly over the next few days and it stayed that way for well over a week.