Dotnetnuke ! whats this ?

hi
I recentlly came across this key word Dotnetnuke !!

i was curiuos to know about this ....

finally i came to know : Dotnetnuke is a Open Source Framework which can be used to build ASP.Net web applications.

This framework provides advanced features of developing projects.

"DotNetNuke is an open-source Web Application Framework ideal for creating and deploying projects such as commercial websites, corporate intranets and extranets, online publishing portals, and custom vertical applications. "

Home Page:http://www.dotnetnuke.com/default.aspx?tabid=777

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Senthil