OpenMyMind.net
Karl Seguin’s site (OpenMyMind.net) has some good articles for ASP.NET developers. The two articles on creating multilingual websites (Part I, Part II) jump out at me, and the “Mastering Page-UserControl Communication” is a must read if you are starting to write user controls which interact with the parent page. (Hint: using Request.Form or FindControl to pull values from a user control is path filled with peril).