Wikipedia Digital Cinema en.wikipedia.org/wiki/Digital_cinema
Lots of detailed information about digital cinema, including the history and links to additional resources.
Interested in having your film qualify for an Academy Award? It’s surprisingly easy! You’ll just need to follow a few basic submission and exhibition rules.
EasyDCP Mastering guide
Link to the EasyDCP mastering guide. This is one of the best software packages, and here you can find an excellent description of the mastering process.
International Documentary Association http://www.documentary.org/
If you’re making a documentary you’ll definitely want to make use of the resources made available by the IDA.