
1) Community website 2) Mobile game 3) Social networking service
Found on
https://www.crosswordclues.com/clue/whrrl

Whrrl was a social location-based game developed by the Seattle-based company Pelago, Inc. Whrrl had a recommendation engine that uses algorithms and users` votes to surface relevant recommendations. On June 30, 2010, Whrrl launched its Society Rewards Program, designed to close the gap between a brand’s online social media and real-world prese....
Found on
http://en.wikipedia.org/wiki/Whrrl
No exact match found.