HotelProps.com is a new website that rewards travelers for their referrals. This is how it works: Travelers who stay at a HotelProps hotel can then refer that hotel to their friends and family and will earn free nights based on those referrals also staying at the hotel–it’s called referral based rewards. Each property determines how many referrals they will require before offering a free night, so the amounts vary. Starting in January, hotels and travelers can sign up at http://www.hotelprops.com to pre-register for the program.