I've four top class SPS developers to thank too for their excellent work and willingness to share it:
Jason Sullivan for SPSFAQ0301101 - Can I have a script that puts an array into the Categories and Keywords multivalue lists in SPS?
Dave Sampieri for SPSFAQ0301102 - How Can I make a Web Part that displays a Shared Appointments Calendar/Contacts list?
Weimin Changchien for a detailed and very accomplished SPSFAQ SPSFAQ0301103 - How to search across multiple content sources. This allows the to specify more than one Content Source in the Search Web Part. Very Cool.
Matt Cross for SPSFAQ050114 - How to implement a SharePoint recovery procedure using BackupExec 8.6 with the SharePoint agent installed.

I've written an SPSFAQ on how to write one Web Part with a drop-down of folders that displays the content in a second one. The code is in the ZIP file too:
SPSFAQ090138 - How can I write 2 linked Web Parts for searching specific SPS folders?

I've fixed the "Recently Added Documents" and "Checked Out Documents" Web Parts in SPSFAQ090117. There's even a link there to a conversion tool for fixing files with extra returns at the end of each line called RUM

Finally, there's two new Knowledge Base Articles on the Knowledge Base page:
You Cannot Create New Folders When You Are Logged In as a Local Administrator (329301)
SharePoint Portal Server May Stop Responding When Processing a VBScript Web Part (328311)

SPSFAQ090117 - Are there any more Web Parts that help users access documents?
SPSFAQ0301101 - Can I have a script that puts an array into the Categories and Keywords multivalue lists in SPS?
SPSFAQ0301102 - How Can I make a Web Part that displays a Shared Appointments Calendar/Contacts list?
SPSFAQ0301103 - How to search across multiple content sources.
SPSFAQ050114 - How to implement a SharePoint recovery procedure using BackupExec 8.6 with the SharePoint agent installed.
SPSFAQ090138 - How can I write 2 linked Web Parts for searching specific SPS folders?