So as a relatively long term user of haskell at this point, one issue which I've never found a simple solution to is the one stated in the thread. That is, given modules Foo, Foo.Bar, and Foo.Baz, should Foo reexport Bar and Baz, or should Foo provide common functions for Bar and Baz? In the first case, the common functions would have to be provided by some third module Foo.Util, which for some reason I find unsatisfying, as it means all my my modules have these Util after Util after Util module floating aroudn. My natural tendency is follow the second case, but then of course when it comes to actually using the code that I've written, I no longer have such a nicely exposed interface outside of the particular library. One simply can't eat ones cake and have it too. Maybe this problem is just silly, but perhaps others have always been left feeling ambivalent across similar lines, and have somehow found a pleasant solution for when this particular crossroads is reached? Cheers, - Sacha Sokoloski