Buy with Facebook?    From the merchant’s perspective, this new
API would work much like Facebook Connect and the “Like” button,
so let’s call it the “Buy” button.  Facebook Buy Button
Facebook’s main challenge right now is figure out ways to
increase revenue per existing user, and quickly. Without
discounting market development efforts currently underway that
will likely determine an increase in the social network’s
popularity in countries like China and Russia, where they are
not the main player as of now, the fact of the matter is that
Facebook will never again experience the massive growth of its
early days.  Facebook is a rich pool of demographic data waiting
to be used by marketers. Newly added features to Facebook pages
for businesses that allow brands to tailor their messaging
beyond just location and languages spoken are welcome and should
increase engagement. However, targeted display ads have been
found to under deliver to marketers’ expectations.   The company
has also been harshly criticized for