Wikipedia [1] has been one of the great success stories of the Internet, but as you all know, teachers prefer you to use edited, reliable and trustworthy sources for your research and assignments. Unfortunately, Wikipedia is not always reliable, but now, there's a new product being developed from it that provides expert validation of the content. This is a great benefit for both teachers, students and researchers. The new product, called Veropedia, [2] has 4009 verified articles at the time of writing.
Links:
[1] http://www.wikipedia.org/
[2] http://en.veropedia.com/docs/faq.php