The Belgian start-up Paycento enables users to pay for online content by logging in to social networks such as Facebook, Twitter and LinkedIn. After opening an account with Paycento, users can pay small amounts for online articles or music in just one click, without also having to register with their credit card details. The only condition for the online purchase is signing up to the social networks. Media companies who cooperate with Paycento's easy-to-use payment system could see a boost in their internet sales.