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"Activity Monitor is a little know gem of an app hidden in the Utilities folder in your Applications folder. It can look daunting when you first launch it but once you look past the ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/apple/2011/01/15/how-to-use-activity-monitor-to-make-your-mac-faster/>