Plenty of Fish (POF) is a Canadian online dating service, popular primarily in Canada, the United Kingdom, Ireland, Australia, New Zealand, Spain, Brazil, and the United States. It is available in nine languages. The company, which is based in Vancouver, British Columbia generates revenue through advertising and premium memberships. While it is free to use, Plenty of Fish offers premium services as part of their upgraded membership, such as allowing users to see who has "liked" a member through the service's MeetMe feature, and whether a message has been read and/or deleted.