The Encyclopedia Astronautica is a reference web site on space travel. A comprehensive catalog of vehicles, technology, astronauts, and flights, it includes information from most countries that have had an active rocket research program, from Robert Goddard to the NASASpace shuttle to the Soviet shuttle Buran.
It is maintained by space enthusiast Mark Wade, who has been collecting such information for most of his life.
... See Professor Edward Felten's freedom-to-tinker Web site for information and pointers.
An early example of a DRM system is the Content Scrambling System (CSS) ...