Try a traffic service IF your product has fairly broad appeal to internet surfers. It's NOT THE best, but is one avenue to persue. You can get it started within 24 hours...
advertisewithtraffic.com. The guy has excellent feedback on Ebay and has been selling there since 1998 ( a rare feat). Also, I see no problem with them at BBB or via my search on Google newsgroups. Most of the traffic is from expired domains.
Obviously, there are many other ideas... but to list them all here would simply overwhelm you! Take it ONE step at a time!
Chris James
http://completelistofpaidsurveysites.com
*Free list of probably every paid survey company out there. All OUR survey sites are free to join.