Editoria
<www.aie.it>
<www.wuz.it>
Libri on line
<books.google.com>
<digital.casalini.it>
<www.liberliber.it>
<www.amazon.com>
<www.ibs.it>
<www.destore.com>
<www.webster.it>
<www.unilibro.it>
<www.libreriauniversitaria.it>
Iniziative disciplinari on line
<www.retimedievali.it>
<www.cliopress.it>
<www.eliohs.unifi.it>
<www.cromohs.unifi.it>
Ebook
<www.openebook.org>
<www.unitus.it/virtual/e-book/faq.htm>
