Tinder co-founders Justin Mateen and Sean Rad, who are suing the companies that now own the dating app for allegedly cheating them out of stock options. Photograph:  Michael Buckner/Getty Images

Tinder founders, executives and early employees have sued IAC/InterActiveCorp and Match Group for at least $2 billion, claiming the owners of the dati(...)

Facebook has tremendous scale: with more than 2.2 billion users logging on every month, 200 million of whom have their relationship status set to ‘single’.  Photograph: iStock

Facebook has the largest network of singles in the world, a mission to bring people closer together and detailed data that research has shown knows yo(...)