what is directory and classified exacly. what is different?
My first reply : )
The main reference between classifieds and directories is that classifieds are mostly for listing items while directories are mostly for listing services.
Classifieds have come along way from the early days of craigs list, and while they have always been focused on functionality allowing user to list stuff for sale, rent, etc… nowadays sites like airbnb and similar are much more focused on smaller niches i.e. apartments for rent. Another example would be freelance websites although most if not all they also include directory where users post their portfolio.
Directories are mostly for businesses or individuals (i.e. freelancers) listing services
Hope that helps.