Wikipedia
LinuxTag
LinuxTag (the name is a compound with the German Tag meaning assembly, conference or meeting) is a free software exposition with an emphasis on Linux (but also BSD), held annually in Germany. LinuxTag claims to be Europe's largest exhibition for " open source software" and aims to provide a comprehensive overview of the Linux and free software market, and to promote contacts between users and developers. LinuxTag is one of the world's most important events of this kind.
LinuxTag's slogan, "Where .COM meets .ORG", refers to its stated aim of bringing together commercial and non-commercial groups in the IT sector. Each year's event also has its own subtitle.