Reference Tools:
Nation Master (http://www.nationmaster.com)
Reference site contains country statistics, maps, flags, graphs and pie charts. NationMaster is a vast compilation of data from such sources as the CIA World Factbook, UN, and OECD.
State Master (http://www.statemaster.com)
Reference site contains state statistics, maps, flags, graphs and pie charts. Statistics are gathered from the US Census Bureau, the FBI, and the National Center for Educational Statistics.
Wikihow (http://www.wikihow.com)
World's largest, searchable "how to" manual.
How Stuff Works (http://www.howstuffworks.com)
Using illustrations, video, and articles, this TLC-sponsored web site explains how different objects function.
Wolfram Alpha (http://www.wolframalpha.com)
Enter your question or calculation and Wolfram Alpha uses its built-in algorithms and a growing collection of data to complete the answer.
* Information provided by: Librarian Melissa Whitesell
Thanks for the reference I think every site owner should make use of them to get updated on latest buzz on the internet.
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