I built http://www.classifiedlist.net is Classified Search Engine Good or Bad make money with adsense ?
there are a few wel known and well established classified sites out there where most people go. it will be challenging to drive traffic to an individual classifies site but if yuo can drive traffic to it, then surely you will get clicks
It's all about the matter of traffic. If you can collect traffic then it'll not only good but best for you. But surely it wouldn't be an easy task to drive traffic through classified ads.