Because CouchDB is aimed squarely at the line between the desktop and the cloud, Couch disrupts a lot of the web-physics we’re accustomed too. […] In a CouchDB-enabled web, data-flows don’t have to be centralized, which means friends can communicate without going through a fixed domain. This makes the web more efficient. It also means I can make data available to my social network without relying on 3rd-party services.