A fews numbers from the last issue of "Yes" magazine:
Average % of food in the US dependent on honeybee pollination:33%
Dollars worth of crops honeybees pollinate annually in the US: $14 billion
% of bees on the east coast that have vanished due to Colony Collapse Disorder: 60%
% of bee loss considered normal: 20%
Years Albert Einstein estimated humans could live if all bees died: 4 years