These include vaccination campaigns and the use of bed nets chemically treated to kill mosquitoes that spread malaria.

VOA: special.2009.09.28

The jury soon became standard in criminal and civil cases at common law, and its use spread with the British empire, nowhere more so than in the American colonies.

ECONOMIST: American juries

And contraceptive use spread rapidly.

ECONOMIST: Africa��s population

As the use and spread of social media accelerates, so do the analytical capabilities to extract insight from across the social Web.

FORBES: Sports And Analytics: A Holistic Approach