ePost, A decentralized p2p collaborative messaging system including email based on FreePastry
Coral, A peer-to-peer content distribution network.
Spruce, a tool for measuring available bandwidth.
p2psim, a simulator for peer-to-peer (p2p) protocols.
Chord and DHash, a lookup service and distributed hash table
Key file, an software download service for the Internet
Bamboo, a robust, open-source DHT
FreePastry an open-source implementation of Pastry and applications including SCRIBE, PAST, SQUIRREL, SplitStream, POST, and Scrivener.