Here is a list of questions which I (!!) consider as TOP 3 C# (Visual Studio) questions (although the answers are probably the most interesting) on stackoverflow. Yes, I do love STO
- Hidden Features of C#
- Visual Studio Optimizations
- Which C#/.Net blogs do you read?
If you need more see the most voted C# questions. Would be nice to see some more lists like that (Julien, what about Flex?, Fab PHP?).