Well over half of Americans ages 15-34 are actively using online social networks (e.g., Facebook, MySpace), spending on average more than seven hours per week on such websites and driving the growth of overall time spent online. For those 35 and over, the percentage of social network users drops, but still represents tens of millions of people. Participation in social networks continues to grow, though more slowly than in prior years, as more people seek to connect, share and collaborate with sometimes far-flung family, friends, business colleagues and other likeminded individuals online. Today, hundreds of millions of online users have already joined at least one social network, with an increasing number belonging to more than one. About 40% of all social networkers say they use social