pump.io is an open source social networking and microblogging platform developed by Evan Prodromou. It is designed to give users control over their privacy and data while still allowing them to interact with others.
Some key features of pump.io include:
Overall, pump.io focuses on control, privacy, and federation - allowing users on different pump.io servers to interact - rather than monetization. For users concerned about large corporate platforms, it offers an ethical, community-driven alternative.