Daily deals site, Groupon Inc. (NASDAQ: GRPN) announced on Monday that it has acquired Blink Booking. Blink Booking is a Madrid based start-up which made last minute hotel booking app called Blink. The terms of the deal were not revealed though. Blink, which was founded in 2011, raised $2.5 million last year in order to expand its traction. According to Blink Booking’s website, the app at present offers last minute bookings for hotels spread across 184 cities in eight countries. The deal will help Groupon to expand its presence in Europe. The Blink app has been downloaded more than 600,000 times so far.