Social websites expose class divide <BR>ED: Facebook for sugar and mySpace for coffee? <BR><A href='http://technology.guardian.co.uk/news/story/0,,2111028,00.html?gusrc=rss&feed=20'>http://technology.guardian.co.uk/news/story/0,,2111028,00.html?gusrc=rss&feed=20</a> <BR>