Re:Duolingo, learn a new language while translating the web
by ColinWright on Tuesday June 19, 2012 @06:51PM
(#4134616)
... and all over HN today:
http://news.ycombinator.com/item?id=4132213
http://news.ycombinator.com/item?id=4132213
http://news.ycombinator.com/item?id=2434057