Hi Maarten, First I suppose that you know about the great book from Simon Marlow, I also found that paper very interesting to understand some low level aspects of the RTS: http://haskell.cs.yale.edu/wp-content/uploads/2013/08/hask035-voellmy.pdf Then, to actually respond to your question, I enjoyed looking into the code of some web servers to see how it's built: *Warp* http://www.aosabook.org/en/posa/warp.html https://github.com/yesodweb/wai/tree/master/warp/Network/Wai/Handler *Snap* https://github.com/snapframework/snap-server/tree/master/src/Snap/Internal/H... Also, in a different category, *bronk* by Bryan O'Sullivan might be of inspiration: https://github.com/bos/pronk Good luck! On 24 November 2014 at 14:37, Maarten Faddegon < haskell-cafe@maartenfaddegon.nl> wrote:

Hello Café,

Recently I became interested in parallel and concurrent Haskell and I wonder if there are any non-trivial open-source programs that are recommended to have a look at?

Thanks,

Maarten Faddegon

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