Knowtex

Middle-aged men are more likely to have a poor sex life if their wife is close to their friends because it undermines their masculinity, a study has found.

If asked how many friends you have, some may have trouble distinguishing between the lengthy list of Facebook friends and those close pals you confide in.

Few interesting facts from the recent report issued on June 16 2011 by PEW Internet and American Life Social networking sites and our lives.

We're all embedded in vast social networks of friends, family, co-workers and more. Nicholas Christakis tracks how a wide variety of traits - from happiness to obesity - can spread from person to person, showing how your location in the network might impact your life in ways you don't even know.