Ariuum - Online debate and discussion streaming platform
Twishort - Twishort is a best Twitter app for writing longer tweets. Tweet more than 140 characters
roundtable.audio - Live audio chat rooms to discuss anything on the internet
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.
YEAY - QVC + Tumblr + Snapchat. Vertical video shopping.
5Tweets.com - Type a long tweet and 5Tweets will rewrite it into multiple tweets with a tweet count.