ForumFree - ForumFree allows you to create a forum or a blog in a few simple steps.
Muzzy - it’s a tiny and gorgeous iTunes companion that lives on your menu bar. For Mac OSX, its free!
Proboards - ProBoards is a host of free forums with customer service.
Bowtie - Bowtie is a desktop accessory that allows you to see and control your music (iTunes, Spotify...
Disciple - Grow, engage and monetise your community with Disciple community software. Get your own branded community platform on Web, iOS and Android
Owlead - Grow your Twitter with valuable followers, effortless