From Rosetta Code
My Favorite Languages
Language Proficiency
Common Lisp Intermediate
Erlang Intermediate
Haskell Novice

Project ideas:

Chat Server, Client, Gateway

This wouldn't replace the existing Chat Server project as it would be more complex, nor would it replace the IRC Gateway project (it'll be more complex in languages that have a good IRC library, but easier for languages that don't).

Chat Protocol

Remote Agent - Simulation - as I put the code together I'll update this. Once it's done I'll move it into a proper solution page.