Heartbeat - Listen to music with your friends together, on Spotify
Twitter text Splitter - Twitter text Splitter is a chrome extension that helps you to publish multiple tweets of your writing or a paragraph on your newsfeed.
Liyo - Stream your favorite music live with friends 🎶
Privatter - Privatter is the easy way to share long texts and pictures set limit on your followers. You can post them by Sign in with Twitter account to this site.
Partyhero - Pass your friends the aux!
TwitLonger - TwitLonger is the easy way to post more than 140 characters to Twitter