http://java.sun.com/developer/techDocs/hi/repository/
2013: http://www.oracle.com/technetwork/java/tbg-general-141722.html

Special other sources:
book.png, cd.png, dvd.png, book2.png, cd2.png, dvd2.png is from http://www.pdclipart.org
loan.png, prolong.png, return.png, mediaoverview.png, search.png, wizard.png, labels.png, newbook.png, newreader.png, overduelist.png, overduenotice.png, overduemail.png, loan16.png, prolong16.png, return16.png, mediaoverview16.png, search16.png, wizard16.png, labels16.png, newbook16.png, newreader16.png, overduelist16.png, overduenotice16.png, overduemail16.png designed by Andreas Jung