In terms of how we pay, many quickly think of their credit card or debit card as they pay online or increasingly with their mobile device, powered by Square or not.

FORBES: The Real Winners of Black Friday and Cyber Monday

It may not be natural to associate Amazon (an online retailer), Apple (a device maker), and Facebook (a social media site) with search, but in the technology industry, your next competitive threat can come from anywhere.

FORBES: Who Competes With Google Search? Just Amazon, Apple And Facebook