Death, devices and celebrity drove the quest for more information on Google's search engine this year.
Three of the world's four fastest-rising search requests on Google were triggered by the deaths of famous men.
Former South African President Nelson Mandela, who died earlier this month, occupied the top spot, followed by Fast & Furious movie star Paul Walker, who died in a Nov. 30 car crash. Glee TV series cast member Cory Monteith, who died of a drug overdose in July, ranked fourth in an annual retrospective released Tuesday.
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