Haskell
http://www.reddit.com/r/haskell/comments/22x2zy/haskell_wheres_the_linq/
C++
http://cpplinq.codeplex.com/
http://www.drdobbs.com/cpp/linq-like-list-manipulation-in-c/240166882
http://www.codeproject.com/Articles/488177/cpplinq-LINQ-Query-Operators-for-Cplusplus-Sequenc
https://github.com/k06a/boolinq