The way the first position in the auction is selected has largely gone unchanged, while the next three spots now see different criteria in their algorithms. The second spot, usually occupied by suppliers, is exclusively displaying suppliers that direct the traveler directly to the hotel website rather than the highest bidder between suppliers and OTAs. The third spot is reserved for either Trivago Express Bookings or an alternate deal. The final ad slot will be reserved for the best rate available with a competitive CPC in a case where more than one has the best price. Get the full story at Koddi