Wikipedia

The English edition of Wikipedia encyclopedia has more than 3 million articles and and anyone with Internet access can write and make changes to these Wikipedia articles.

Google Knol – Quick Start Guide

Everything you wanted to know about Google Knol - a wikipedia style online encyclopedia that anyone can edit and also make money using Google AdSense.

Know the Daily Page Views for any Wikipedia Article

Wikipedia Traffic statistics is a gold mine for content creators and SEO crowd because traffic on individual Wikipedia articles is often directly proportional to the popularity of that term on the Internet.