The fundamental bedrock of marketing includes the four Ps: product, price, place and promotion.

FORBES: Why Social Media Isn't the End All for Marketers

To review them, they are the four Ps, the eight Ps and, yes, even the 10 Ps.

FORBES: Why Social Media Isn't the End All for Marketers

The government's counter-terrorism strategy is based on what officials call the "Four Ps" - prevent, pursue, protect and prepare.

BBC: UK to shift anti-terror strategy