There are a lot of websites where people can rent out lodging (peer to peer rental): Airbnb, 9flats, roomorama, Wimdu ... Trying to find the best place is difficult because you have to access every website to compare. Somebody told me that there is a search engine (meta-search) where you can find a lot of places at the same time, but I can't remember the name and can't find it.
Is there a such website?
If so, which P2P rental sites are included and which excluded (so to be searched ' by hand')?