(French or German language skills might be handy to answer this.)

I set up the www.koopjesmolen.nl (a self serve auction) this summer
and have recently been informed of the existence of a similar
operation in France called Troc de líle which has been in business
since 1982 and is growing explosively (in non Internet terms).

I am not talking about a webshop but an actual store where you walk in
and can see the goods live.

Questions:
I would much appreciate:
A list of similar companies (clones) with URL's

Financial information and operational info on the industry = self
serve consignment selling of second hand goods

Tips or advice about alternative combinations of high volume low value
click 'n bricks store management for unique articles.