Abstract: A seamless travel hive engine automatically stores a user's travel-related information in a seamless travel hive repository, and may generate experience marks for displaying and sharing a user's travel-related information. The system provides a continuity of the travel-related user experience through time by storing, updating, aggregating, and sharing information among multiple users and across multiple devices and applications, including social networks. The seamless travel hive engine continuously and dynamically integrates a seamless travel hive repository, travel reservation module, experience mark manager module, comparison module, tagging module, alert module, and consumer travel-related applications, and may provide a platform for a continuous cross-device travel booking flow.