marketing strategies, reduce operational costs and more effectively focus talent across the organization. All our dating products provide the use of certain features for free, and then offer a variety of additional features for paid members. Substantially all of our Dating revenue is derived directly from users in the form of recurring membership fees. which typically provide unlimited access to a bundle of features for a 62 Table aQszaltata specific period of time, and fees paid for a la carte features, which are typically for a specific action or event. We have historically grown our business both organically and through strategic acquisitions. We have developed a core competency for identifiying, acquiring, integrating and scaling businesses. Since January 2009. we have ci ressfully completed a total of 25 Dating acquisitions (including PlentyOfFish). enabling us to strengthen our business in existing markets and expand our product offerings globally. For example. in 2011. we acquired OkCupid which had a large and loyal user base in the United States, and in 2014. we acquired the remaining outstanding shares of Meetic that we did not already own in order to expand our operations in Europe. While we currently offer our products in over 190 countries. we have been most heavily concentrated in North America and Western Europe. However, with the launch of Tinder, and the acquisitions of Twoo and Pairs, we are increasingly exploiting opportunities in the rest of the world. which we believe are significant. For the quarter ended September 30, 2015. 54% of our MAUs were outside North America. pro forma for PlentyOfFish. Trends affecting our Dating business Over the last several years. we have seen significant changes in our business. During this time. our portfolio has evolved from one dominated by our Match and affinity brands in North America, and Meetic internationally, to one in which Tinder, OkCupid, PlentyOWish and Twoo now represent the majority o