This memorandum contains engineering information relevant to the use of communication satellites for educational purposes. Information is provided for ground terminals as well as satellites. Satellite related issues addressed include: (1) expected life of service of various satellites, (2) constraints on the availability of the satellites, (3) comparisons of their technical capabilities and geographic coverage patterns, and (4) speculation on future commercial satellite configurations. Information related to ground terminals includes: (1) costs associated with resiting existing terminals, (2) costs of purchasing new terminals, and (3) costs of converting existing terminals to operate with various satellites. Numerous maps, charts, tables, and graphs are provided. (Author/STS)