Found in 2 comments on Hacker News
telemachos · 2012-05-04 · Original thread
I think this will interest some HN readers: Zachary Kessin's Building Web Applications with Erlang[1] is available as an early-release ebook. As an early release, the ebook price is already cheap, but combined with the 50% discount, today it's $6.49. Definitely seems worth a look.

[1]: http://shop.oreilly.com/product/0636920021452.do

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