Erica, thanks for following up to join the Collaboratory! Poke around a bit and if you don't see the conversation you want to have or the project you think matters, feel free to start it!
We've got a "How We're Using This Site" page that provides more detail on the different areas of the site and the ways to make best use of them to not only share ideas, but to get projects up and running: http://rjicollab.ning.com/page/how-were-using-this-site.
And you can keep track of latest activities on the network by visiting the What's New page: http://rjicollab.ning.com/page/whats-new.
Thanks for joining us! Adam Glenn on behalf of the RJI Collaboratory