Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. RadioTux is a German internet radio show. The topics are mostly around free and open source software, free operating systems like *BSD and Linux, as well as on sociopolitical issues. It was founded in 2001. There have been made more than 100 transmissions and many interviews with famous people like Mark Shuttleworth, Miguel de Icaza, Hans Reiser, Jon "Maddog" Hall, Richard Stallman and so on. Since 2005 there are also several podcasts available one is the interview feed in English. Everybody can participate on RadioTux. All topics are welcome: there are no limits. The site of the project is based on a wiki, which means that anyone can use his/her web browser to enhance the contents of the pages by editing them. This makes it really easy for everyone to participate. Internal communication works over a mailing list, which is open for everyone to listen in.