I found Kijiji while trying to sell my car on e-bay one day. Kijiji is slowly growing as a free, local, community-oriented, sell-&-buy bulletin-board-style site (did I say Craiglist?). You can even find houses on sale on Kijiji-Paris (tip: Frenchpeople can’t think local -yet. If you’re looking for an house anywhere in France, you’ll have to check also the Paris site).