I’ve enabled Gravatar for comments, if you don’t know what that is, you can find out all you need to know at http://gravatar.com
I have also setup a github account for all the source code from this blog. It is pretty easy to use and should a multi-contributor project stem from this blog, we’ll have a place for it. Find out more at http://github.com or browse the repo at:
http://github.com/wwitzel3/pieceofpy/tree/master
UPDATED
I took down the github repo and setup a mercurial repo with trac on top of it.
http://trac.pieceopfy.com/pieceofpy
See Blog themes and SCM for more details.