P2PU is a free online platform for peer learning fueled by open content. It offers study groups, courses, and challenges in various schools including education, social innovation, and the mathematical future. Learning is designed to be hands-on, driven by learner needs, and involve active discussion and collaboration rather than just reading. Pilot programs showed positive response but also that time is limited for participants and online peer learning is new for many. Upcoming terms will offer new groups and courses focused on writing, connected learning, and hacking poems through remixing existing works.