Airbnb was founded in 2008 and has since grown to be valued at $10 billion after raising $475 million in 2014. It now has over 25 million guests staying in listings across 190 countries annually. Airbnb takes a 9-12% commission on each booking, splitting it between a 3% host fee and 6-9% from the guest. While facing some competition from hotels and similar homestay sites, Airbnb's large global network and funding positions it for continued strong growth.