10 Minute Mail - Temporary disposable e-mail service to beat spam. Avoid spam with a free secure e-mail address.
Sociall (Beta) - A secure and private decentralised social network for all.
Hamster Pad - A social network built on top of Slack
Manyverse - A social network off the grid
Kaboom by Hotspot Shield - Share messages & photos that disappear on any social network
data.world - The social network for data people