The term Open Access encompasses a variety of research contributions intended for dissemination to the research community. These can be broadly classified into two types:
(1) Open Access journals
(2) Open Access repositories or archives
The open access movement offers a number of advantages to people cutting across all sections of society. Most journals and repositories do not impose access costs on the reader. Thus price barriers are substantially lowered or removed entirely. Authors are thus granted the ability to address a wider audience without the corresponding expenditure. The reach of the articles or materials increases tremendously since readers can retrieve it regardless of their economic status or geographical location.