Answer: Social media or Social networking services.
Social media is an interactive form of communication that allows users to interact, share information, ideas, career interests and other forms of expression and connect with each other generally by means of the internet. The include various categories and virtually every body from different niche of life can find a platform to thrive. They include; blogs; business networks; forums; microblogs; photo sharing; products/services review; social gaming; video sharing; virtual worlds etc.