Many people want things temporarily and therefore are not in the market to buy, but to rent. If you own space for example, you can rent it.
Many people rent out spare rooms, apartments, etc. I even know people who rent out their only apartment (and crash at their girlfriend’s place if someone rents it).
9Flats – On 9flats.com you can find vacation rentals,
apartments and guest houses, owned by friendly locals across the world.
Airbnb – Find both short and long term apartment or room rentals.
Camp In My Garden – Online garden camping community. As a member of this community you can advertise your own garden as a campsite and/or book accommodation in other community members’ gardens.
Easy Room Mate – Flatshare site.
Park At My House – Find cheap car parking or rent out your parking space, garage or driveway near a stadium, tube station or airport. Make money by renting out your private spaces
Rent My Items – Rent out those unused household items… and earn some money.
Rentalo – Global directory of vacation rentals, hotels, bed and Breakfasts, vacation homes, condos, villas, cabins, chalets, lodgings, furnished accommodations.
Roomoramma – Roomorama is a booking site that provides a platform for individuals and property managers to rent unoccupied living spaces and other short-term lodging to guests.
Storemates – Find the cheapest storage space in your community with Storemates. Earn money through renting out your extra space at Storemates.
Wimbdu – Wimdu is a web-based platform, based on the peer-to-peer property rental model, that advertises properties on the internet for short term lettings.