International Study on the Acceptance and Use of Open Access Publishing
Resources
What is Open Access?
A very brief introduction to Open Access by Peter Suber, research Professor at Earlham College
Information Resources
Peter Suber's Open Access News - A great source for up-to-date information on the Open Access movement
Initiatives
Budapest Open Access Initiative - One of the first statements to support Open Access
Berlin Declaration
Open Archives Initiative - Initative to establish a standard for Metadata Harvesting
Directories & Databases
Directory of Open Access Journals
Public Library of Science
PubMed Central - U.S. National Institute of Health's free digital archive of biomedical and life science journal literature
OAIster - Initiative to create a collection of freely available, previously difficult-to-access, academically-oriented digital resources
arXiv - Open access to a large body of e-prints in Physics, Mathematics, Computer Science and Quantitative Biology
Other
Creative Commons Initiative - similar goal as Open Access
GNU.org - Home of the GNU operating system, the GNU General Public License and the Free Software Foundation
Open Source Initiative (OSI)
Copyleft as opposed to "copyright" is a term referring to software or works that are free for everyone. Modified or extended -versions of such software or works are required to remain free as well.