About a fifth of adults have visited a social networking Web site, and an equal percentage of Internet users have done so in the past 30 days, according to a survey of several countries by Ipsos Insight. "The Face of the Web 2006" survey was conducted in November and December 2006 in urban Brazil, Canada, urban China, France, Germany, urban India, Japan, urban Mexico, urban Russia, South Korea, the UK and the US.
