But as the number of classifieds increase (as a result of the cost decreasing and the availability increasing) doesn't the value of each classified decrease? Surely each advert is seen by less people... I'm not sure if more is such a good thing, and therefore shouldn't be compared with farming - Chris Lloyd

But doesn't the addition of search increase the potential number of viewers an ad has? I'd think that a search on CL for an item brings up many more ads in a shorter period of time than I could find by scanning classifieds in the newspaper. - Joe Bonner