Post To Craigslist. Its free and seems to reach a lot of people.

Here is my most recent post.

http://houston.craigslist.org/rnr/150297602.html

Hit all the cities you can, concentrating on the largest first.

I would suggest posting in Rant and Raves, Politics, Casual Encounters etc

I put a counter on the above post and got 360 hits in the last 2 hours.

It's a great way to get the word out.

Joe