Here are some examples of the online libraries. There are many other e-book resources in the internet. Astralibris has no relation to the referenced sites and is not responsible for their content.

Dutch language:
http://manybooks.net/language.php?code=nl
http://www.selexyzdownloads.nl/
http://www.dbnl.org/
http://www.biblioo.nl/
http://onlibri.nl/
http://www.ebook.nl/store/

Project Gutenberg in Dutch:
http://www.gutenberg.org/browse/languages/nl


English language:
http://www.ebooktechie.com/mobile-ebook/free-ebooks-download/
http://www.lib.virginia.edu/digital/collections/text/
http://onlinebooks.library.upenn.edu/
http://ota.ahds.ac.uk/
http://www.canadiana.org/eco.php
http://www.baen.com/library/

Specially for students:
Free textbooks


French language:
http://gallica.bnf.fr/

Project Gutenberg in French:
http://www.gutenberg.org/browse/languages/fr


Russian language:
http://www.lib-mobile.com/
http://lib.ru/
http://lib.aldebaran.ru/

Project Gutenberg in Russian:
http://www.gutenberg.org/browse/languages/ru


Multiple languages:
http://manybooks.net/language.php
Project Gutenberg (general):
http://www.gutenberg.org/catalog/
Books of Jules Verne in different languages:
http://jv.gilead.org.il/works.html