Today, this page has some basic information on how to set-up accounts. Eventually, this page should/will have more detailed steps on how to volunteer.
The simplest most effective step to volunteering is to join the yahoo group. The team uses the group to communicate via email.
Much of the content developed by the team is hosted on this wiki (at http://agile-pm.pbworks.com/) You can review content, but to comment or add content, you need to create an account.
This site requires a valid PMI site userID and password to log in. Is at http://agile.community.pmi.org
TBD: Needs steps for PMI User and non PMI users? to be granted access to the PMI site