ForumFree - ForumFree allows you to create a forum or a blog in a few simple steps.
CoverSutra - CoverSutra gives you a handy and attractive way to control iTunes without ever leaving your current...
Proboards - ProBoards is a host of free forums with customer service.
SpotiMy - Play/Pause and Next/Previous functions for Spotify directly on your Menu Bar!
Disciple - Grow, engage and monetise your community with Disciple community software. Get your own branded community platform on Web, iOS and Android
Muzzy - it’s a tiny and gorgeous iTunes companion that lives on your menu bar. For Mac OSX, its free!