The boost they've been getting is probably slowing because there are not as many non-mobile shoppers who will convert.

Zuckerberg rejected $2 billion for Facebook and has successfully created a company worth nearly $200 billion.

Zuck is unemotional. He doesn't get influenced by ego.

Zoom Air, one of Nike's most popular shoes, was introduced to the market in 1995, but was first given the name Tensile Air.

Zoologists may find jobs working for government agencies, non-profit organizations, universities, museums and zoos.