Captchas and crowdsourcing

What if… you can help 100 million people to learn a new language, and let them help translate the web in return?

TEDxCMU — Luis von Ahn — Duolingo: The Next Chapter in Human Computation (by TEDxTalks)

captcha , crowdsourcing , Luis von Ahn , scale

Rolf Kleef

I help organisations in civil society, humanitarian aid, and government benefit from online collaboration.

I currently focus on the IATI Standard, open data, and connecting systems and processes in (networks of) organisations.

Are you working at a non-profit or social impact company? Better data practices can help you increase impact, transparency, and engagement.