A .NET Techanology of Microsoft provide all fetures of developement.
From System designing to Webdesigning.
A each year .NET introduced new concept for learn.which make more easier of developement.
you may view this link
what is new in .NET 2010 [
^].
Following are the language supported by .NET Framework
.NET Framework and Languages[
^]
You may learn all of this to explore you skills
And this link says all about .NET framework
.NET Framework[
^]
So explore your self in .NET.Its very very good platform for developement of any thing that you want in computer.
From application to Website.
and from Webservice to Cheaplevel development.
BEST OF LUCK