Amazon showed off a new drone prototype for its planned 30-minute unmanned delivery service.

Families contemplating a ski vacation may be asking themselves: Do we want to ski economy-or first class?

Your doctor may soon prescribe you a smartphone app in addition to drugs and physical therapy. Hospitals are developing new mobile apps to help patients manage serious medical conditions and feed information back to their doctors between visits, often in real time.

Much more is highlighted in A Look Ahead.