...the process of removing barriers such as price (including subscriptions, licensing fees, pay-per-view fees) and permission (e.g. copyright and licensing restrictions), in order to enable free, online access to full-text information.
The Budapest Open Access Initiative states: "There are many degrees and kinds of wider and easier access to this literature. By 'open access' to this literature, we mean its free availability on the public internet, permitting any users to read, download, copy, distribute, print, search, or link to the full texts of these articles, crawl them for indexing, pass them as data to software, or use them for any other lawful purpose, without financial, legal, or technical barriers other than those inseparable from gaining access to the internet itself. The only constraint on reproduction and distribution, and the only role for copyright in this domain, should be to give authors control over the integrity of their work and the right to be properly acknowledged and cited."
One of the most common questions we hear from faculty, researchers and students on our campuses during discussions about Open Access is:
"Is there any evidence that making my article available though an Open Access channel will actually result in more citations for my work?"
This question has been examined in a growing number of studies, and our colleagues at SPARC Europe have complied a helpful new resource to provide up-to-date information on this important topic. Building on the excellent groundwork provided by the JISC-supported "OpCit" project, SPARC EU has created an updated list of the 70 studies published to date examining Open Access and possible citation advantages, along with a summary table that provides comparative details on the studies' methodologies and findings.
The new "Open Access Citation Advantage" resource can be found on the SPARC EU homepage, at: http://sparceurope.org/oaca/ We think you'll find this a very useful reference!
For researchers, OA
For the public, OA
For educational institutions, OA
Source: Australian Open Access Support Group
There are two main ways to deliver open access to publications:
1. Green Self Archiving - authors publish in a journal and self-archive a freely available version of the manuscript in their institution's repository such as Appalachian States' NC DOCKS, or in a national repository (for example, PubMed Central).
2. Gold Publishing - authors publish in OA journals that provide free, immediate access to the articles via publisher web sites that may or may not carry author fees. The Public Library of Science (PLOS) is an example of a Gold publisher.
See SHERPA Romeo - a service summarising permissions that are normally given as part of each publisher's copyright transfer agreement. It uses the colour coding above to highlight publishers' archiving policies.