Added 3 for Czech Republic.
Also put a note about Facebook groups. When I try to find a classified website to use for searching, to confirm and to put on this list, I typically search google with:
reddit country buy and sell
As this usually will find a thread on reddit where someone asks for a site to buy or sell used items on. In many of the responses I see, people say to look at x city Facebook because there are groups. Certainly this is the case, I know of those groups for my city, but apparently there are many cities around the world that have a lot of people using Facebook for this kind of stuff. Even Czech Republic or India and probably every large city. There have been some instances where I was not able to find a country website but know such FB groups exist.
If you know how to find these groups, you can post instructions here. I am not certain it would be viable to list out those sections in this thread.
