I've had a lot of trouble getting my students registered as team members able to write in this blog.
I think I've figured out that problem, so we should start seeing some content soon.
For those of you considering team blogging, our problem here is that Blogger sends out an invitation by e-mail, and some e-mail services (e.g., Hotmail, Yahoo) insert HTML code into the messages. This can invalidate the link to the invitation that Blogger sends. The workaround is to not click on that link; rather, copy that link into the address bar of a browser and go.