This document proposes a one-stop online travel marketplace called Travelatus that would integrate booking of flights, hotels, activities and recommendations. It would use APIs from existing travel services and their affiliate programs. A recommendation engine would suggest personalized activities based on friends' experiences or events happening during a user's trip dates. The founders have experience in internet marketing, programming and web development. Travelatus would generate revenue through affiliate commissions, APIs from 3rd party developers, and its own travel services.