As you might know, I wrote three books about LINQ with Paolo Pialorsi. He’s an expert in SharePoint development and after one year of tough writing it is finally available its Microsoft SharePoint 2010 Developer Reference book. If you want to write code for SharePoint, either on server or client side, this is a must have book. You can also take a look at the whole Table of Contents on O’Reilly site.
Paolo also created a web site for the book (yes, in SharePoint!) and has a new blog to provide content and examples for SharePoint developers. Paolo is the man that runs a conference agenda page like this using SharePoint (actually, the sessions are defined in a SharePoint list): I think there is some XSLT magic behind, and of course also this technique is well covered in the book. Don’t miss this braindump of his SharePoint knowledge!