"Project Gutenberg is the first and largest single collection of free electronic books, or eBooks. Michael Hart, founder of Project Gutenberg, invented eBooks in 1971 and continues to inspire the creation of eBooks and related technologies today."
"The Open Content Alliance (OCA) is a collaborative effort of a group of cultural, technology, nonprofit, and governmental organizations from around the world that helps build a permanent archive of multilingual digitized text and multimedia material. An archive of contributed material is available on the Internet Archive website and through Yahoo! and other search engines and sites."
"Diese Seite bietet einen Schnellkurs fürs Bibliographieren im Netz, wenn Google nicht weiterhilft. Der Schwerpunkt liegt – entsprechend den Zielen von Wikisource – auf dem Ermitteln von Digitalisaten."