Der Spiegel Wissen, the science magazine of worldwide known German news magazine Der Spiegel will focus in its next issue 3/2010 on the human knowledge of the 21st century. The useable knowledge and its sources have changed significantly, we are using search results and online encyclopedia entries without criticism, while the useage of "old-school" libraries is decreasing. The next issue of Der Spiegel Wissen will be published August 31, 2010. The enclosed title page belongs to the previous issue, is only illustration.