Duolingo -- the next chapter in human computation | Luis von Ahn | TEDxCMU 2011
TEDx Talks2 HN recommenders · recommended in 2 months, 2011-2012
394K views · 15 years ago · talk · dated
Luis von Ahn, creator of CAPTCHA and reCAPTCHA, presents Duolingo at TEDxCMU 2011. The idea is to have millions of people translate the web for free while learning a language, an example of human computation.
HN people recommend it as a look at how to get people to eagerly do useful collective work, and as the origin of Duolingo.
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3 comments from Hacker News
I am currently using Duolingo to learn Spanish and I find it quite amazing. It offers a great interface and I love the gaming elements. It's by far one of the best web applications I have used in a long time. So kudos to Luis von Ahn and the team! I recommend watching his TedX talk (the mind boggling thing from the presentation is: English Wikipedia could be translated in 80 hours if 1 million people used Duolingo!) ▶ this video
Another language learning tool by the creator of Captcha: www.duolingo.com check out a description at: ▶ this video
First thing: Watch this video from Luis von Ahn ▶ this video He is the creator of reCAPTCHA and working on a translation solution which answers your question (regarding how to get people to eagerly do work for your community) pretty eloquently. Regarding your specific user engagement problem... I would venture to say that the problem you're solving here is not clear. You describe what your site can DO! But not what your site DOES for me. In other words, you're solving problems. Not providing solutions. This blog post from Dave McClure is pretty relevant here, too: link Despite the aggressive tone of the article, I think there's a good insight on how you should be "pitching" on your website's landing page.