At the 2013 AMSAT-NA Symposium Hans van de Groenendaal ZS6AKV gave a presentation on the challenges presented by overcrowding of the two meter (145 MHz) satellite band.
A PDF of his slides can be downloaded from
http://mstl.atl.calpoly.edu/~bklofas/Presentations/AMSAT-NA_Symposium2013/Groenendaal_Overcrowding_Two_Metre_Band.pdf
Bryan Klofas KF6ZEO gave a presentation Upcoming CubeSat Launches: The Flood Has Arrived, his slides can be seen at http://www.klofas.com/papers/klofas_upcoming_cubesat_launches.pdf
The slides for other presentations given at the 2011, 2012 and 2013 AMSAT-NA symposiums can be downloaded from http://mstl.atl.calpoly.edu/~bklofas/Presentations/

