The story
The concept of the FitFinder website was conceived by Rich Martell, a computer science undergraduate studying at University College London (UCL). The website, launched in April 2010, was originally a joke between Martell and his rugby friends who would text each other when they spotted an attractive girl. The website immediately spread and became instantly viral. In the first few hours the site had over 2,000 users and had to be taken down. Once the site was back online again, its popularity grew to nearly 20,000 visitors in the first weekend. The initial success was met with huge demand for the expansion of FitFinder to more universities across the UK. By the time the site was taken down the site was reported to have had over 250,000 users over several countries with more than 5 million page views.
From Wikipedia’s article on FitFinder, shared under CC BY-SA 4.0.4