1. 15% of American adults have used online dating sites or mobile dating apps. http://pewrsr.ch/1SgNCZl. Accessed: 2016-10-22. 15% of American adults have used online dating sites or mobile dating apps. http://pewrsr.ch/1SgNCZl. Accessed: 2016-10-22.
2. The case for an older woman. http://blog.okcupid.com/index.php/the-case-for-an-older-woman/. Accessed: 2016-10-22. The case for an older woman. http://blog.okcupid.com/index.php/the-case-for-an-older-woman/. Accessed: 2016-10-22.
3. OKCupid about. http://www.okcupid.com/about. Accessed: 2016-10-22. OKCupid about. http://www.okcupid.com/about. Accessed: 2016-10-22.
4. Researchers caused an uproar by publishing data from 70 000 OKCupid users. http://fortune.com/2016/05/18/okcupid-data-research/. Accessed: 2016-15-9. Researchers caused an uproar by publishing data from 70 000 OKCupid users. http://fortune.com/2016/05/18/okcupid-data-research/. Accessed: 2016-15-9.
5. Tinder. www.gotinder.com/press. Accessed: 2016-10-22. Tinder. www.gotinder.com/press. Accessed: 2016-10-22.