ASP - Active Server Pages - Microsoft's server side web development platform evolved into ASP.Net in 2002 while providing web developer with tools to make dynamic web sites and web services in efficient manner.
It is based on .Net Framework and makes the Object Oriented Programming more appealing in a range of programming languages including C#, VB.net and a few more.
Microsoft has been upgrading the .Net Framework since its inception. At present, it is .Net Framework 4.5.
Follow, Learn and Apply ASP.Net
This is a collection of ASP.Net tutorials written in C#. New tutorials are added to the collection regularly.
The emphasis is on the real life application rather than teaching the basics.