LinkedIn is definitely ahead of its German rival, Xing by leaps and bounds, but Xing will never quit trying to get on top of it. Today the social network for professionals took a major step with the launch of a variety of OpenSocial apps. This comes in collaboration with 13 partners across 7 countries and a total of 16 apps. This is almost twice as many as those of LinkedIn which has only 9. The apps include:
