Now the Team Foundation Server 2008 supports WSS 3.0 as well as MOSS, I'm even more interested in what the differences are - more than just "one is free, and one is not".

I found a couple of good resources. The first one is a page that discusses "which SharePoint technology is right for you?" and the second one, is a condensed Excel download of the comparisons.

So, pop quiz time ...

Q. Which SharePoint supports Mobile Devices (simplified text-only format)? (choose all that apply)

A. Windows SharePoint Services 3.0
B. SharePoint Server 2007 for Search
C. Forms Server 2007
D. SharePoint Server 2007 (Standard)
E. SharePoint Server 2007 (Enterprise)

SharePoint features are an incredibly useful way to deploy chunks of functionality to web sites.  Although they can be difficult to grok at first, once you do, they make a lot of sense!  Scot Hillier, a very well known SharePoint expert has begun a CodePlex project titled SharePoint Features, which aims to provide some extra functionality to SharePoint.  He's kicked off the project by contributing some really cool stuff, including a Debugging Feature, a Log Viewer Feature, and a Theme Changer feature.  He's also got loads more up there!  Have a favorite feature you've built?  Contribute!

I haven't checked out what license they are released under, but they're worth checking out!

Here are a couple of good sites for learning about Sharepoint 2003 customization:

• MSD2D - Sharepoint
• SharePointCustomization.com