Seattle-based airfare and hotel rate tracking firm Yapta announced today that it has inked a partnership with Booking.com, an online hotel reservations firm. Yapta said that it will use the partnership to track hotel prices on a much broader selection of properties. Yapta said the move will allow travelers to monitor pricing on over 196,000 domestic and international properties. Yapta is headed by Tom Romary, and has been tracking hotel rates on the service since March of 2009.