What is Open Access?
“Open-access (OA) literature is digital, online, free of charge, and free of most copyright and licensing restrictions. What makes it possible is the internet and the consent of the author or copyright-holder.” – Dr. Peter Suber (for his biography, see: bit.ly/petersuber)
Also, for more information either read ‘A Very Brief Introduction to Open Access’ by Peter Suber or
Watch this video to learn the basics:
Other useful introductions:
Peter Suber’s longer ‘Open Access Overview’