BTDigg: BitTorrent DHT search engine Codeen: web caching Coral Content Distribution Network Freenet: a censorship-resistant anonymous network GlusterFS: a distributed file system used for storage virtualization GNUnet: Freenet-like distribution network including a DHT implementation I2P: An open-source anonymous peer-to-peer network I2P-Bote: serverless secure anonymous email IPFS: A content-addressable, peer-to-peer hypermedia distribution protocol JXTA: open-source P2P platform Oracle Coherence: an in-memory data grid built on top of a Java DHT implementation Perfect Dark: a peer-to-peer file-sharing application from Japan Retroshare: a Friend-to-friend network[30] Jami: a privacy-preserving voice, video and chat communication platform, based on a Kademlia-like DHT Tox: an instant messaging system intended to function as a Skype replacement Twister: a microblogging peer-to-peer platform YaCy: a distributed search engine