AMSAT, The Radio Amateur Satellite Corporation, has launched over 30 amateur radio satellites. Most have been cooperative International projects. The first satellites from Argentina, Portugal, Korea, and other countries were amateur satellites, manufactured in cooperation with AMSAT chapters around the world. The Phase 3-D international satellite is a cooperative deal with 14 countries participating. This paper will discuss how the groups around the world decided to cooperate with each other, and lessons learned from the various projects. Examples of how international satellites have been used for education will also be included
