Default dot aspx
Default.aspx
No, it's not the name of a page written in ASP.NET, it's a new great website for learning ASP.NET and all relevant technologies.
It contains a lot of topics like: ASP.NET, SQL, JavaScript, OOP,XML, etc...
Tutorials are presented in terms of question and answers, which is suitable for new ASP.NET programmers.
By the way, you can ask your own questions there.