Inkblot: Box CEO Aaron Levie

By Mark Milian - 2013-05-14T19:09:16Z

Photograph by Andrew Harrer/Bloomberg

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'Time Sink'

Levie is an outspoken guy, and his medium of choice for broadcasting his opinions is Twitter -- a "time sink," he said.

Smartphones enable employees to get work done while out of the office, but the devices also provide new ways to goof off. Such as Twitter.