Meetic SA, the operator of a dating website, tumbled 11 percent to 17.20 euros after founder and ChiefExecutive OfficerMarcSimoncini abandoned his plans to sell the company.
But China's QQ.com Love ranks highest in Asia, Meetic and be2 are No. 1 and 2 in Europe and Amigos.com is second only to MSN in Latin America, according to comScore.
They include such figures as Pierre Kosciusko-Morizet of Priceminister, Marc Simoncini of Meetic, and Xavier Niel of Iliad, who launched Free, a telecoms firm, from nothing to take on the established giants.