I've been in a discussion today with one of our customers on good C# coding guidelines/standards, and I confess to not having any good references to give him.

He was nice enough to send me a link to one that he thought was good, which happens to be by Juval Lowy at iDesign.

If you have other coding guidelines that you think are good, feel free to add the to the comments, and I'll try to get them up on our C# dev center.