Abstract: System, device, method, and computer program and computer program products for providing communicating between devices having similar or dissimilar characteristics and facilitating seamless interoperability between them. Computer program software and methods of and systems and devices for sharing of content, applications, resources and control across similar and dissimilar permanently or intermittently connected electronic devices. Devices, systems, appliances, and the like communicating and/or interoperating within the framework provided. A social synchronization interoperability method, such as a Dart Social Synchronization method provides an efficient and easy to administrate method for synchronizing specific sets of data and/or operations across any number of devices and protocols without the need for every device to contact a master device, or for any device to act as a master. Social synchronization of devices and content provides an advantageous alternative to mastered synchronization techniques.