As a follow-up to the 12/2 posting about the Wikipedia "biography", here's an article from CNET News about changes to Wikipedia.
"...to avoid future problems, (Wikipedia founder Jimmy) Wales plans to bar anonymous users from creating new articles; only registered members will be able to do so. That change will go into effect Monday, he said, adding that anonymous users will still be able to edit existing entries."
This may help, but I still have reservations about Wikipedia as an authoritative source. I've used it, but I try to find a second source for confirmation about what I find there.