Authorities and rescuers used the trajectory of the helicopter and cell phone signals from Ruppert's phone to narrow down the search area.

CNN: STORY HIGHLIGHTS

Kayak received close to 900 million search queries on its website in 2011, a 42% increase from 2010, and we expect the upward trajectory to continue for the rest of our forecast period.

FORBES: How Big Of A Threat Is Google To Kayak?