Quora connects you to everything you want to know about. Quora aims to be the easiest place to write new content and share content from the web. We organize people and their interests so you can find, collect and share the information most valuable to you.
M. Breuer. Kommunikation, Partizipation und Wirkungen im Social Web. Band 2: Strategien und Anwendungen: Perspektiven für Wirtschaft, Politik und Publizistik, Herbert von Halem Verlag, (2008)