- The official line on SharePoint from MSDN
- A gallery of SharePoint sites
- Martin White’s SharePoint resource list
- Metataxis presentation on Information Architecture in SharePoint
- Codeplex is a Microsoft hosted open source community. There is MOSS stuff to be had.
- SharePoint team blog
- White paper: Information architecture in Office SharePoint Server
- SharePoint search overview
- Most SP training courses are aimed at either writers or technical folks. This TFPL one looks good for a IM/IA audience.
All my SharePoint bookmarks are on delicious.