Sharepoint 2007 resources
You may have been playing with the Beta of Office 2007, and it may have inspired you to start looking at SharePoint 2007. I use this quite a bit internally at Microsoft - especially the wiki software and the blogging software. Yes I have an internal blog too, where I chat about up and coming stuff that I can't yet talk about externally.
Now SharePoint is one of those products that bridges the Developer and IT Pro areas: in fact, there are so many things you can do to extend sharepoint especially with the new search facility, and the workflow capability. So here are a list of Microsoft resources you can go to for information and I'd also recommend that you have a look at Shanes blog too...
Whats new for Developers
How do I?...
Download Sharepoint Server 2007 SDK
Sharepoint Services SDK
Searching in Sharepoint