Online Travel Agencies like Expedia, KAYAK Hotels.come are finely run machines who's primary goal is filling empty rooms. They're now the first port of call for travelers, who often bypass the hotel and go straight to these competitor analysis sites to make sure they're getting the best deal. It's easy to begrudge the listing and commission fees when in many cases much of the customer information is withheld. The upside of these sites is of course awareness and bookings through OTAs, once you have them in the door you have to take every opportunity to build the guest relationship so that they'll come direct the next time. Here are some tips to try and encourage them to stay with you the next time they visit.