Abstract: Methods and systems for implementing a repository of customizable itineraries are disclosed. Based at least in part on user input, trip components are selected from a repository of itineraries based at least in part on user input from a first user. The trip components represent events or locations. Recommendation input for customizing the trip components is obtained from additional users. A customized itinerary is selected based at least in part on the itinerary and the recommendation input. The customized itinerary comprises one or more user-selected modifications to a chronological order or one or more user-selected substitutions to the set of trip components. The customized itinerary is stored in the repository of itineraries.

Abstract: Methods and systems for implementing a trust-based social graph for travel planning are disclosed. Social data is obtained from one or more social network services. Based at least in part on the social data, trust scores are determined between an entity and a plurality of additional entities. For one of the additional entities, the respective trust score is determined based at least in part on a respective relationship score and a respective similarity score for the additional entity. One or more respective connections are generated in a social graph between the entity and one or more trusted entities of the additional entities. The one or more respective connections with the trusted entities are generated based at least in part on the respective trust scores.