If you follow Ski's wikipedia link, you'll read about some studies that link CCD to neonicitinoid pesticides (although there are probably other factors as well). Based on a peer reviewed report by the European Food Safety Authority, the European Union has banned these neonics for two years. If you buy commercial seeds and plants in the US they may have been pre-treated with neonics. Something to be aware of and try to avoid...
On a related note, the city of Alamogordo (not too far from me) has had a ban on keeping bees in city limits. Overturning the ban was on a recent city council agenda. Not sure if it passed, but I hope so, and more power to folks like Little Spider who take up beekeeping.