SharePoint 2010 Reference: Software Development Kit
Conceptual overviews, programming tasks, code samples, and references to guide for developing solutions based on SharePoint 2010 products and technologies.
Installing and Using the SharePoint 2010 SDK Download
SharePoint Foundation 2010 SDK Documentation
SharePoint 2010: Professional Developer Evaluation Guide and Walkthroughs
Describes the SharePoint 2010 developer platform, including walkthroughs of some of the new capabilities for developers.
Developing Applications for SharePoint 2010
Provides technical information about key areas of SharePoint 2010 application development. It contains a written guide, reference implementations with source code and documentation, and a library of reusable source code components.
SharePoint 2010: Getting Started with Development on SharePoint 2010 Hands-on Labs in C# and Visual Basic
10 hands-on lab manuals for SharePoint 2010 to get started learning SharePoint 2010 development.
SharePoint 2010 Developer Training Kit
Provides developers with advanced guidance on how to develop for SharePoint.
Videos – Microsoft Office SharePoint Server
Webcast on-demand – Microsoft Office SharePoint Server
Virtual Lab – Microsoft Office SharePoint Server
Nice blog… which covers a lot…