Free eBook
  7 Development Projects with the 2007 Microsoft Office System and Windows SharePoint Services 2007

  Microsoft Developer Centers
  Microsoft Office
  Windows Sharepoint Services
  Microsoft Office Sharepoint Server

  Software Development Kits
  MOSS SDK
  WSS SDK
  Project SDK

  Screencasts
  2007 Office System "How do I?" Screencasts
  MOSS installation videos - NEW!
  
  Technical Article
  Developer Intro to Workflows for WSS v3 and SPS '07

  Technical Briefs
  K2 BlackPearl and Visio pdf  
  K2 BlackPearl and MOSS pdf 

  Create Business Process Applications - NEW!
  K2 provides the tools to design, build and manage dynamic business applications, which when augmented with MOSS, 
  add rich capabilities for managing content and fostering collaboration. K2 and MOSS 2007

  The upcoming BlackPearl includes a set of tools that enable users to collaboratively
  assemble business process applications from reusable artifacts.

  Blogs and Groups
  Sharepoint Server Community - NEW!
  Rodney Viana's Blog - MOSS installation videos - NEW!
  Virtual Group on LinkedIn 
  Sharepoint Product Group Blog
  SharePoint Portal Server - Google Group
  Windows SharePoint Services - Google Group
  Cappy's Blog - Information on KnowledgeLake, SharePoint, ECM and life in a software company
  Steve Curran - Living an Abstract Life for Emerging Technologies
  Darrin's WorkBench - Thoughts and information on SharePoint Products and Technologies,
                                  ECM and KnowledgeLake Imaging products
  Danner's Blog - Steve Danner is the Product Manger for Capture Technologies
  Matt Hester's Blog - Microsoft IT Pro Evangelist
  Eric Shupps' blog - Sharepoint MVP
  Bob Fox's blog - Sharepoint MVP
  Dallas area Microsoft Business Intelligence Community - MSBIC
 
  
  Tips N Tricks
  Introduction to custom master pages in Sharepoint 2007
  Creating a basic site definition in Sharepoint 2007
  Enabling drop down menus in WSS v3