Social media is oriented towards specific end users .There are social media for information exchange and interchange. Pictures, photographs, images and videos are the common features that all social media websites offer. Depending upon the interest of the user, they choose the social media websites.
When businesses want to go for websites they would also like to include some of the social media feature in their website functionality. Blogs and forums make the website more dynamic and not like the FAQs, blogs and forums are able to attract the visitors more.
One can get the archived informations also whenever necessary. There are social media websites meant for professionals like linked in, technorati.