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 Datagrid thing..which I don't have a use for right now but looks very cool...