A world of connections
Online social networks are changing the way people communicate, work and play, and mostly for the better. To give a figure for social networks, Facebook, which celebrates its sixth birthday next month and is now the second most popular site on the internet after Google. The globe’s largest online social network boasts over 350m users—which, were it a nation, would make Facebook the world’s third most populous after China and India. Its users now post over 55m updates a day on the site and share more than 3.5 billion pieces of content with one another every week.
Source: http://www.economist.com/sp...








