The two infringements make you wonder what non-famous companies do and how they are controlled:
Google Admits It Was Accidentally Collecting Some Open WiFi DataData (TechDirt, 14 May 2010)
EU watchdog slams Facebook privacy settings (Euractiv, 14 May 2010)
and new challenges ahead…
Obviously the question is a matter of sensibility as the US tend to be less concerned than Europe.
Draft Of Privacy Bill Introduced… And Pretty Much Everyone Hates It (TechDirt, 5th May 2010)