I signed up for Broadjam some years ago, but never actually participated. Still, they send me emails daily asking for music in this vein, that style, or whatever genre. If you get Broadjam emails, post some interesting ones here for inspiration.
Here are a few of the latest I've got:
Old School Hip-hop about Break-dance Crews
Moving and Tender Break-up Songs
Slow Passionate Country-folk or Celtic
Tag your songs #broadjam