1: -

The state of Virginia (USA) has published a new open source physics textbook under a Creative Commons license.

This peer-reviewed textbook was produced in less than six months by a team of authors, which included...

• active researchers,
• high school teachers, and
• college professors, as well as some retirees.

Is this a new world of textbook publishing.

• Quick to press,
• vetted,
• easy to revise,
• produced at a low cost by publishers,
• free for students.

2: -

Motion Mountain is another physics ebook, in pdf format, which is free for everybody...

• to store,
• read or print for personal use, and
• to distribute electronically, but only in unmodified form and at no charge.

Find out more at http://www.motionmountain.net/download.html.

Note: Permission is required from christoph@motionmountain.net if downloaders wish to use any part of the text in any product or service