|Social Interaction between the people in different ways like Facebook, Twitter, LinkedIn, Google+, YouTube in which they share their information or different views etc. and it is called social media. Among the above mentioned social networking sites Facebook and Twitter have more users and user activity. Facebook claimed that on an average monthly 955 million users are using Facebook and for Twitter they have an estimated 462 million users. The wide acceptance of these social media environments offers a large and well-defined segment to the savvy marketer. Twitter and facebook users come under social media family but they work differently. is classified into many different forms which include magazines, Internet forums, weblogs, social blogs, microblogging, wikis, social networks, podcasts, photographs or pictures, video, rating and social bookmarking.
Open access to the scientific literature means the removal of barriers (including price barriers) from accessing scholarly work. There are two parallel roads towards open access: Open Access articles and self-archiving. Open Access articles are immediately, freely available on their Web site, a model mostly funded by charges paid by the author (usually through a research grant). The alternative for a researcher is self-archiving (i.e., to publish in a traditional journal, where only subscribers have immediate access, but to make the article available on their personal and/or institutional Web sites (including so-called repositories or archives)), which is a practice allowed by many scholarly journals.
Open Access raises practical and policy questions for scholars, publishers, funders, and policymakers alike, including what the return on investment is when paying an article processing fee to publish in an Open Access articles, or whether investments into institutional repositories should be made and whether self-archiving should be made mandatory, as contemplated by some funders.