Wikipedia is an indispensable part of the internet, it acts as online version of complete encyclopedia. It supports more than 23 languages and has 2461000+ articles. Also Wikipedia is listed among the top ten most visited website based on Alexa ranking. Another important thing about Wikipedia is that they doesn’t have any advertisement in any of their wiki pages, even though information is wealth.
By foreseeing the importance of moderated information article providing sites like Wikipedia, Google team has came up with Knol (which stands for nothing but knowledge). They describe a Knol as an authoritative article about specific topic. You can visit the website knol.google.com for more details in this regard.
Read about an article to use Google Notebook for instant Online Notemaking needs.