IMO, you should get text links that say "(your city) classified ads" or something similar. try to get websites like yours or in your same field to link to you, i.e. classified ads websites or (your city) websites. i'm trying to figure out the most efficient way to find these types of sites and get them to link up....if anyone knows of a good tool to make link building efficient i would appreciate the help. i don't think any automated linking or directory submission are good, maybe someone can prove me wrong?
ya i doubt random links would help much...even if they have decent PR getting classifed sites to link will be hard, considering my site is competition of some sort
you can look for sites that specialize in classified ads for other cities...that way you are not in competition with them.
You should look for links from Advertising industry and there are many sites of your kind. SO you shouldn't find it difficult to building links for your site.