XING AG, formerly Open Business Club AG, is a Germany-based company engaged in the provision and maintenance of online business communication services. It offers companies enterprise solutions afforded by Web 2.0 and manages the communities for professional networking. It supplies support in establishing new business contacts, expanding and managing the network of contacts and organizing meetings and events. It enables its customers to identify experts in several fields and receive advice on any topic as well as promote themselves in their business environments. It serves around 1.5 million networkers worldwide. The product portfolio consists of four categories: openBC platform; openBC Premium Groups; openBC mobile, with mobile phone access; openBC plugin, supporting Lotus Notes and Microsoft Outlook. The solutions are offered in 16 languages and data as well as privacy protection is provided. It co-operates with epublica, a Web-based corporate solution provider and Sevenval AG, mobile