Wikipedia
wikipedia.org
![](http://www.apsense.com/m_photo/profile/20120405/1333633076341849.jpg)
ivan simeonov
very good site for more infomatcion good for reading
![](https://www.apsense.com/m_photo/profile/20121120/1353436596116249.jpg)
Md. Kaium Hossain
Wikipedia.org is the largest reference site for any content of different sector. I like this very much.
![](http://www.apsense.com/m_photo/profile/20130314/1363262038227053.jpg)
Matt Kaey
Wikipedia is by far the most used "reference" site on the internet. It contains information about almost any subject, even subjects you never even knew existed. I highly recommend using and support Wikipedia, as it's a free resource and only can survive by donations.
![](http://www.apsense.com/m_photo/profile/20101122/1290445546637969.jpg)
Vijaya Lakshmi
It is the largest library according to me. Most of the information in the site is trustworthy and it is given with source. I like this site much and refer most times to learn.
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Wikipedia
https://wikipedia.orgWikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.