None of this is necessarily new information, but since many of the questions I get asked about on the blog site relate to documentation, here are my links to save from Microsoft on SBS.  When people ask me "How do I ...." and then anything from install WSS v3 without frying the box to install SBS to in an existing domain.

For starters I ask people to look at this link here for all the important docs.

http://www.microsoft.com/technet/prodtechnol/sbs/2003/default.mspx

Sometimes the search only throws up R2 versions of docs and I think the SP1 versions are still good, especially for the setup, installation and migration scenarios:

http://www.microsoft.com/technet/prodtechnol/sbs/2003/plan/gsg/chptr3c.mspx

Have you ever had a backup fail, or achvesync or one of a miriad of other errors and wanted somewhere to look that was specific to SBS, then this link is for you http://download.microsoft.com/download/5/6/1/561c9fd7-0e27-4525-94ec-4d2d38f61aa3/TSHT_SBS.htm.  It covers:

• Troubleshooting Server Setup
• Troubleshooting Users and Groups
• Troubleshooting Client Computers
• Troubleshooting Mobile Devices
• Troubleshooting E-mail
• Troubleshooting Monitoring
• Troubleshooting Backup and Restore
• Troubleshooting Internet Access
• Troubleshooting Your Intranet
• Troubleshooting Shared Network Resources
• Troubleshooting Remote Connections
• Troubleshooting Client Computer Licensing

This page also points you to wards the SBS 2003 Support Page (Solutions Center) which is always worth knowing - http://support.microsoft.com/default.aspx/ph/3208 and the RSS feed (which almost always has nothing in it) of http://support.microsoft.com/common/rss.aspx?rssid=3208.  Having said that, the SBS Documentation RSS feed and blog is very much worth knowing about and it is at http://blogs.msdn.com/sbsdocsteam/archive/2006/10/26/meet-the-sbs-docs-team.aspx

ttfn

David