Where can I find SharePoint resources by Microsoft? Well that's a question I have read a few times and I asked it myself. And yes, I had a few problems getting an overview of all resources I have seen: There are blogs, resource centers and portals. But I have never seen a picture mapping the resources to SharePoint. So I did it by myself. (B means blog, RC means Resource Center) 

SharePoint in general

• Newly published content for Office SharePoint Server 2007
• Microsoft TechNet
• Microsoft TechNet Forums  
• RC: Best Practices Resource Center for SharePoint Server 2007
• B: Microsoft SharePoint Team Blog

Collaboration

• Any special content available?

Portal

• Any special content available?

Search

• B: Microsoft Enterprise Search Blog
• B: Filter Central

Enterprise Content Management - ECM

• RC: Document Management Resource Center for SharePoint Server 2007
• RC: Records Management Resource Center for SharePoint Server 2007
• B: Microsoft Records Management Team Blog
• B: Microsoft Enterprise Content Management (ECM) Team Blog
• B: Microsoft SharePoint Designer Team Blog

Business Process (Workflows)

• Any special content available?

Business Intelligence

• Any special content available?

Development

• SharePoint Server 2007 Developer Portal
• Windows SharePoint Services Developer Center

Administration

• RC: Updates Resource Center for SharePoint Products and Technologies
• RC: Backup, Recovery, and Availability Resource Center for SharePoint Server 2007
• RC: Performance and Capacity Planning Resource Center for SharePoint Server 2007
• RC: Windows Server 2008 Resource Center for SharePoint Products and Technologies

Yeah that's a big list with tons of resources... but did I miss something? If yes please write a comment so I can keep the list up to date.