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Re:Ask HN: Best way to keep up to speed on a new language/te... by factorialboy on Saturday May 05, 2012 @09:19PM (#3933810)
* Join the community mailing list, and be active

* Try to solve the 99 problems with that language - http://www.haskell.org/haskellwiki/99_question

* Try writing (book / blog / articles etc.)

* If its open source, participate in the community, fix issues, send pull requests etc.