I am fairly new to this list so I hope I am not posting redundant information, though I have roughly searched the last year of archives to avoid doing so.

I recently discovered a very interesting website which might be of collaborative use to some AMSAT members. http://www.openspaceuniversity.org, a.k.a. DIYRockets appears to be focused on maintaining space related education material and sharing open designs for satellite and rocketry (disclaimer: I am not affiliated with DIYRockets).

73, Ethan KF5UFH