In my quest for SharePoint blogs, I came across several other useful resources. I have published them on my SharePoint site:
http://www.pathtosharepoint.com/Lists/Resources/AllItems.aspx

You’ll find ~50 links in this list. They cover various topics, including calendar, social networks, screencasts, live demos, forums, etc. The most represented sites are WSSdemo.com (4 links) and EndUserSharePoint.com (3 links).

As usual, feedback and suggestions are welcome!