Umm...ok, maybe a bit over the top, but this guy is a brilliant ASP.NET developer, and along with Andy Smith produces some of the most useful stuff around for ASP.NET developers his site has a whole bunch of useful stuff such as the ASP.NET version switcher, the Dynamic Controls Placeholder (which really should be in the core ASP.NET framework - of course ASP.NET 2.0 might not need it  who knows!). The reason for choosing today is that I've just noticed that he has an article on ASPAlliance.com about his Hierarchcal Datagridthing..which I don't have a use for right now but looks very cool...