These decisions regarding discounts to increase profits have always been made on a geographical basis, but technology is much more sophisticated than it was twenty years ago, and customers like myself have gladly shared their full shopping histories, enabling store managers to mine through an enormous amount of data.

FORBES: Individualized Coupons Aid Price Discrimination

More housing, more shared office and coworking spaces and who knows, even a grocery store.

FORBES: Startups in the Desert - Investigating the Las Vegas Downtown Project

Also, by sharing shopping carts, they can view what their friends are buying in the store at any given time, poll comments and make shopping a shared experience.

FORBES: When smart phones and smart friends go shopping together

Callum shared his computer expertise with Theresa showing her how to research the history of the store using the internet.

BBC: Virtual College shares its knowledge!