Trippy
Trippy is a social and mobile friend-sourced tool launched in September 2011 founded by technology entrepreneur J.R. Johnson. who also founded Lunch.com, OneTime.com and VirtualTourist which was acquired by Expedia in 2008.
About Trippy
Trippy aims to simplify and improve travel planning through what they call "friend-sourcing." The app ties into users' social networks, such as Facebook, to discover which friends, family and contacts have visited the considered destination—whether it be that they've checked-in, lived, worked, or studied there.Through one-click recommendations and Facebook-style commenting, Trippy lets friends suggest what hotels, restaurants, and destinations would be a good fit. The startup offers an auto-complete tool to quickly pull up what you're looking for — from a database of locations. Users can then add places they're considering so that friends can comment on the itinerary, offering feedback in Facebook-style comment feeds.