 Why does Open Access content not remove all barriers on the choice of the patron?
Shifting from isolated computers to a globe-spanning network of connected computers suddenly allows us to share perfect copies of our work with a worldwide audience at essentially no cost. Open access is the name of the revolutionary kind of access these authors, unencumbered by a motive of financial gain, are free to provide to their readers. Open access (OA) literature is digital, online, free of charge, and free of most copyright and licensing restrictions. Copyright can also be a significant access barrier. Removing price barriers means that readers are not limited by their own ability to pay, or by the budgets of the institutions where they may have library privileges. These purposes include reading and searching, but also redistributing, translating, text mining, migrating to new media, long-term archiving, and innumerable new forms of research, analysis, and processing we haven’t yet imagined. OA makes work more useful in both ways, by making it available to more people who can put it to use, and by freeing those people to use and reuse it. While every kind of OA removes price barriers, there are many different permission barriers we could remove if we wanted to. If we remove price barriers alone, we provide gratis OA , and if we remove at least some permission barriers as well, we provide libre OA . 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. But at the same time, all three allow at least one limit on user freedom: an obligation to attribute the work to the author. The basic idea of OA is simple: Make research literature available online without price barriers and without most permission barriers. If there are complexities, they lie in the transition from where we are now to a world in which OA is the default for new research. In principle, any kind of digital content can be OA, since any digital content can be put online without price or permission barriers. OA is made possible by the internet and copyright-holder consent. Second, scholarly journals generally don’t pay authors for their research articles, which frees this special tribe of authors to consent to OA without losing revenue.
 It is important to retain proper citation practices
 It was a term in the original Open Access agreements that they would start removing some barriers and move from there  It would be too difficult to remove all barriers given that most of this content is on the internet  It is not financially viable to cover all of the bases  It is important to retain proper citation practices