After calling into question the reliability of using WikiPedia as an online reference resource, a study conducted by the journal Nature found only minor differences in the accuracy of information when comparing Wikipedia's science references to the Encyclopedia Britannica.
The study is significant for the open-source software concern, which depends on more than 13,000 volunteer editors around the globe, many of them experts in his/her field.
Thanks to Tim G for sending a link to a BBC story about the study.