I don't know, classifieds still exist. Obviously internet is superior for this, but not everyone can afford internet of any kind, since the bloat scaled with Moore's law. 500KB/s right will give you the same rate of browsing articles as dial up in the 90s. Phones have been becoming obsolete after 2 years. That doesn't necessarily dictate the market but yeah.

It's funny you mention 500kb/s. I have a painfully slow connection at home currently (long story). It's exactly in the 500kb/s to 800kb/s range and "dial up speed" is exactly how I describe it.