If you are thinking of websites - Google may be the most visited.
Some newspapers have a section just for the most visited, or the most popular, websites for that week. Huffing-ton post and the record both have this feature.
According to a combination of Alexa ranking and user reviews, the most visited car websites include Edmunds, Autoblog and Jalopnik. Other websites that are also visited frequently include Car Domain, Motor Trend and Top Gear.
The most visited kid websites are Club Penguin, Stardoll, Webkinz, etc.
Google, MySpace, Facebook,Yahoo
Facebook , google, yahoo ,wikipedia etc
That would be Logo, And http://www.thinkb4youspeak.com/
In most browsers use the Ctrl+h keyboard shortcut.
landk
There are many ways one might find the most visited tech support forum. One can monitor and compare site traffic for many websites at the Alexa website.
http://www.filmcow.com/charlietheunicorn.html
The top ten most visited websites in the whole of the world are: 1.) Yahoo 2.) Google 3.) Youtube 4.) Live 5.) Facebook 6.) MSN 7.) Myspace 8.) Wikipedia 9.) Blogger 10.) Yahoo