Seattle-based travel site Yapta, which monitors and tracks airfares, told its users today that it has integrated its airfare tracking service with TripIt.com, an online travel and trip management site. According to the site, users who use TripIt can chose to have Yapta start tracking flights for airline refunds or credits. Yapta said the new feature is available through a "Connect with TripIt" button on the Yapta site.