I would recommend getting together a 'street team' if you will, to drop into gaming discussions all over the biggest networks, like a Facebook, Twitter, 4(or7)Chan, etc.
You may have this going for you already, but all eyes are on Eternity. There is also the Kick It Forward movement which may help.
Kickstarter is a fantastic concept for niche markets. I can see all sorts of excellent system/systemless settings being funded for cheap, as well as low-budget sourcebooks.