Hi Cafe, Hayoo http://hayoo.fh-wedel.de has been relaunched. Hayoo is a search engine for Hackage packages, which allows you to search for functions, data types and packages. It is currently work in progress. Any feedback is greatly appreciated! Hayoo uses Hunt https://github.com/hunt-framework for indexing and searching, which is the successor of Holumbus. Hunt is a flexible, lightweight search platform with a powerful query language and JSON API. Example search requests are: * Function names: map http://hayoo.fh-wedel.de/?query=map * Function signatures: (a->b)->f a->f b http://hayoo.fh-wedel.de/?query=%28a-%3Eb%29-%3Ef+a-%3Ef+b * Module names: Control.Loop http://hayoo.fh-wedel.de/?query=Control.Loop Have a look at the examples on http://hayoo.fh-wedel.de/examples for some advances queries. The old Hayoo and Holumbus are still online at http://holumbus-alt.fh-wedel.de/ -- Sebastian Philipp