CryptoTwittos - Own Twitter accounts, on the blockchain
OI Chat - Chat and collaboration network for Blockstack users
Ethereum Gas Monitor - Ethereum Gas Monitor is a mac menu bar app that displays gas prices for fast, average and safe slow ethereum transactions.
Stealthy: Secret Messenger - Chat anonymously with friends & strangers
NYSE First Trade NFTs - NYSE now lets companies "own" the moment in time where a they first goes public.
Poltergeist - Poltergeist Emoji Chat Platform is the world’s biggest emoji community where you can meet new people, share images, post to a public stream, and fight tedious boredom.