Trails.by is a hybrid bookmarking platform that allows for the collection of "curated" bookmarking lists (called 'trails'), but with an additional social Q&A component. Users can post questions, and other users can post answers in the form of bookmark trails. It hopes to offer a new way to combat information overload by combining the functionality of social bookmarking sites with those of Q&A sites.
The Trails.by API allows users to search existing trails and requests by page, rating, topic or "new" status. It also allows search by keyword. Calls are returned in JSON format.