President Barack Obama likely has a few more "friends" after a town hall
at Facebook headquarters Wednesday, but the real winner may be the
medium of social networking itself, which commands not just the
attention of politicians but now an appearance from the president.
Last year, the popularity of Apple Inc.'s iPad hurt PC sales. This year,
that trend is continuing, as new data from two market research firms
indicate PC shipments declined in the first three months of 2011.