Time on social networks almost doubles in a year

Spending more time on social networks and blogs? You're not alone, with the latest figures showing the number of minutes spent on social networking sites in the United States has almost doubled over the past year.

The total number of minutes spent on Facebook surged 700 percent year-on-year to 13.9 billion in April this year from 1.7 billion a year ago, making it the No. 1 social networking site for the fourth consecutive month.