Tripbirds is a hotel booking site that aggregates data from social networks like Facebook and Instagram. It shows users if any of their Facebook friends have checked into a place they are searching for. The site also displays photos from Instagram and reviews from booking.com for each hotel. Tripbirds gets a 10% commission from booking.com for any bookings made through the site. It is based in Stockholm and was founded in 2011, receiving $750,000 in venture funding.