This is the main product of the company Tripology.

Tripology
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Tripology is a free online referral service that connects travelers to travel specialists. Consumers enter detailed trip requests (normally for moderately tricky to very tricky itineraries). Then, the algorithm matches them with up to three potential travel specialists. Since Tripology.com started June 2007, more than 50,000 trip requests have been processed from travelers seeking the help of travel specialists. Further, over 9,000 global travel specialists have registered on the site.