Blogging and social networking are inextricably linked in the sense that both contain certain features and certain properties of one another. Both are aimed at creating a wide movement as far as multimedia interaction is concerned. Though it is true that blogs can be regulated and kept very private, the main purpose of them is to reach out to a number of people, to have a medium to voice your opinion.
Another similarity is that both these concepts have existed in cyber space for almost a decade now, but in the initial stages both were rather exclusive of one another. Only in the recent times have they been merged, and their similarity in motives truly recognized.
Blogging is essentially done to channel your thoughts out on to an online journal. You also want other people to read what you have written.
