Users list (Photo + Name + Business Type)
Module for users list (Photo + Name...) for each category
If we can have 2 type of users: Private and Professional
The people can click on user and have his Profile and all his Ads list
For example: Users for category Cars, Real Estate...
also by location
Yes, and show in a module too
Whether this is implemented or not, there should be a "search" feature for users. So if I know the name of a person, I can search to see if they have ads.
I suggest also that we have User name and small photo (Avatar) in listing (Smart Table)