I just read a very nice article on ASP.NET Best practices by Ali Khan.  It covers some items that most .NET developers should know by heart and others that we do know but sometimes forget.

The only thing I can find to disagree with is tip number 15.  It talks about using stored procedures instead of "ad-hoc" queries.  The speed benefit of this approach has met skepticism lately by numerous developers.  I definitely fall into this category.  I prefer keeping the maintenance of queries outside of the database.