Things have been quiet here for a bit because the product team is heads down on development. In the meantime a new blog has joined the Visio community that you might be interested in.
John Goldsmith is the author and a frequent newsgroup poster. John hopes to cover common problems discussed on the newsgroups and encourage more people to dive into the Shapesheet and Visio programmability.
If you are authoring a Visio blog and want to let us know about it, please leave a comment with the information.