clopez/procmailgen
Small program in Python that will generate a .procmailrc file for your convenience. You must feed the program with your email address and the path to a file containing the mailing lists that you are subscribed to along with the folders of your inbox you want them to be delivered. See basic example here: http://blog.neutrino.es/2010/procmailgen-easily-classifying-mailing-lists-in-folders-with-procmail/