Forum Moderators: mack
If it is a niche, the cheapest way to start promoting a site is to join into the discussion on forums related to that niche. People really do click on the links in sig lines.
There are niche specific directories here and there, and it might be worth it to get listed in those.
WBF
Then I researched where all my competitors were listed. Put "free link popularity check" into Google. Then check the links to all your competitors and try to get links to your own website from these. Check all your competitors.
This will lead on to other things that will lead on to more. Should keep you busy for a while.
Hope this helps, Caran.