Society

medium.com

Where readers find dynamic thinking, and where expert and undiscovered voices share their writing.

reddit.com

The front page of the internet — communities for every interest, voting the best to the top.

edx.org

Free and paid courses from Harvard, MIT and other leading institutions across hundreds of subjects.

coursera.org

Online courses, certificates and degrees from world-class universities and companies, many free to audit.

duolingo.com

The free, fun way to learn a language, with bite-sized lessons and a streak-based reward system.

khanacademy.org

Free, world-class education for anyone, anywhere, with practice and lessons across math, science and more.

propublica.org

A Pulitzer-winning nonprofit newsroom producing investigative journalism in the public interest.

change.org

The world's largest petition platform, empowering people to start and join campaigns for social change.

meetup.com

Find and build local communities around shared interests.

ted.com

Ideas worth spreading — talks on technology, design and society.