Social Media according to Wikipedia,”is the social interaction among people in which they create, share or exchange information and ideas in virtual communities and networks”.
some types of social media include blogging (example word press), social networking (example facebook), video sharing (example u tube), mocroblogging, gaming and many more.
communicating / connecting to audiences or family, friends, peers.
costs very little money to set up online
a publicity tool
great tool for researchers, also gaining demography information
helpful for educational reasons