Downloadable mobile applications for modifying the appearance and enabling transmission of photographs and videos; software for use in taking and editing photographs and recording and editing videos; software to enable the transmission of photographs and videos to mobile telephones; software for the collection, editing, organizing, modifying, transmission, storage and sharing of data and information; computer software for use as an application programming interface (API) for developing and creating software applications; software to enable uploading, downloading, accessing, posting, displaying, tagging, streaming, linking, sharing or otherwise providing electronic media or information via computer and communication networks; software for streaming audio-visual media content via a global computer network and to mobile and digital electronic devices; computer software which allows users to build and access social network information including address book, friend lists, profiles, preferences and personal data; software for managing contact information in mobile device address books; electronic database in the field of entertainment recorded on computer media