If you are into reading about ASP.NET, Debugging, or any of the other topics that I write about, here are some others that you may want to check out:
ScottGu - ASP.NET Manager. He has all the updates on the new things coming out for ASP.NET and the web in general for Microsoft.
Soma - Scott's boss, great blog to keep you up to date on all things Microsoft.
Tess - been blogging a long time about ASP.NET, great information here if you haven't checked her blog out yet.
Debugging Toolbox - Lot of useful information here, including some awesome PowerShell scripts.
Mark Russinovich - The place to find information about any of the SysInternal tools. Very useful for troubleshooting. He also does some great case studies.
BradA - Another ASP.NET guy who has some great posts that you should check out.
Joe Stagner - Great blog about all things ASP.NET
Scott Hanselman - Another great blog, some things not about ASP.NET, but still great to keep up with.