I've been doing lot's of machine rebuilding as of late. Each time I have to re-setup a blogging tool, I can never remember the GeeksWithBlogs Uri to use. So, here it is to remember....
http://www.geekswithblogs.net/<account>/services/metablogapi.aspx
This is an old engine as the CS folks have changed that structure quite some time back (CS 1.0 I believe).