The trend to use social software applications in companies is continuing. Almost 47 percent of firms in the sector service providers of the information society, such as ICT service providers and knowledge-intensive service providers, use social software applications. The share of service providers using, e.g., discussion forums, social networking services, wikis or weblogs has thus risen by eight percentage points since 2009. In May 2009, the share of companies in this sector incorporating social software into their business routine was about 39 percent, while it was only 32 percent in the previous year. These are the results of a survey among service providers of the information society conducted by the Centre for European Economic Research (ZEW), Mannheim, in cooperation with Verband der Vereine Credit Reform, Neuss, in June 2010.