One of the simple problems I’ve encountered was just getting the name of the server that’s running my ASPX application, whether it be the localhost:xxxx of VS 2008’s Cassini server, localhost, or http://www.myserver.com. The following commend returns that as a string.
The ServerVariables NameValueCollection has a very interesting collection of information that I can see being quite useful to know about in future.
DotNetJunkies has a good tutorial on ServerVariables in ASP.Net.
Note: The command above only returns the address as a string, not the protocol. If you want to use it in an anchor tag (<a href=”someaddress”>somelink</a>) don’t forget to append the protocol (e.g. ‘http://’) to the string returned from the command or you may experience some strange behaviors.