Social ray is a platform for professional networking. Its collaboration features include friends and communities, mailboxes, instant messaging (using AJAX), a powerful search engine, document sharing, forums, vanity URLs for users, and rich media support. Its professional networking features include resume uploads, job searching, automatic job matching, testimonials, the ability to post jobs, job referrals, and accounts for recruitment consultants.
Bitcoin is a peer-to-peer electronic cash system that is completely decentralized, without the need for a central server or trusted parties. Users hold the crypto keys to their own money and transact directly with each other, with the help of a P2P network to check for double-spending.