One idea I had is to make the "tech centerpiece" of the study sessions a laptop which is running DrRacket[2] and some collaborative screen sharing software (e.g. Mikogo[3] or TeamViewer[4]). Additionally, it would be hooked to Dropbox to facilitate easily moving Racket source files to and from the laptop.
Attendees would connect to it and take turns sharing ideas and working through difficulties. I think it would be good to have a whiteboard handy; and open discussions of the material studied between meetings would be the main focus of the group.
What are your ideas? Thanks for sharing!
[1] http://www.ccs.neu.edu/home/matthias/HtDP2e/
[2] http://docs.racket-lang.org/drracket/
[3] https://www.mikogo.com/
[4] http://www.teamviewer.com/en/products/remotecontrol.aspx