Social networking is king in 2010. I realized the level of saturation online networking sites are achieving after I received a Facebook friend request from my 71-year-old mother earlier this year. In fact, Facebook has more than 500 million active visitors, and Twitter has exceeded 100 million. And while most of us use these sites for chatting with friends and sharing our latest ‘cute kid’ photos, the gap between screen and shelf is getting smaller by the minute.