- Forbes, Thursday, September 26, 2013 10:40 AM
Crowdsourcing is coming to language learning courtesy of Duolingo -- a free app with some 5 million monthly active users. “Co-founder Luis von Ahn … says he expects more than 50 languages
to be added to Duolingo over the next two-to-three months, as volunteers start signing up to add their native tongues to its infrastructure,” Forbes reports.
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