Facebook, Craigslists and Postlets are the regulars I would use until you build up a list of consistent buyers.

I l've gotten my website up and running, a Facebook fan page.

I had thought of using the exact same thing only difference I was gonna use word of mouth also, instead of just Facebook I personally don't see this as illegal but maybe someone else will know something I don't.

Lots of good people will be thereAll search Facebook for Metro Detroit Real Estate Investors.Feel free to join.Good luck

Facebook, Twitter etc complimenting that website.  

When we do, I advertise on Facebook and get 10 or so responses quickly.

Craigslist, Facebook and LinkedIn are all places you will easily find buyers.

., video games, Facebook, etc.) to keep me more focused on my goal.

Here is the Facebook group for that.https://www.facebook.com/groups/1628479600713618/

This is a huge problem in tracking the effectiveness.I'm betting AdWords and Facebook ads would have a better response rate, be more targeted, more trackable, and be more cost effective.