The Open Publication Distribution System (OPDS) Catalog is a syndication format for electronic publications based on Atom RFC4287 and HTTP RFC2616. Catalogs enable the aggregation, distribution, discovery, and acquisition of electronic publications. OPDS Catalogs use existing or emergent open standards and conventions, with a priority on simplicity.

Please use #opds for the twitter hashtag.

Interested parties are encouraged to join the Google Group discussion list, at http://groups.google.com/group/openpub.