Here is why Klout matters: one day soon, everyone interacting online will be measured in one, massive data-driven popularity contest.

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Nielsen took the first step a year and a half ago when it began including time-shifted viewing data, typically measured within three (termed "live plus three") or seven days ("live plus seven") of a program's original airing.

FORBES: Magazine Article

Perhaps the most impressive statistic produced by NASCAR (and measured by Mars, Inc. tracking data) is that Mars, Inc. receives an impressive 4-to-1 return on investment from their sponsorship in NASCAR.

FORBES: NASCAR Sponsor Mars, Inc. Thrilled With Partnership; Boasts 4-to-1 Return On Investment

In a 2010 study done at Kaiser Permanente reported in Health Affairs of 35, 423 people with diabetes, hypertension, or both, the use of secure patient-physician e-mail within a two-month period was associated with a statistically significant improvement in effectiveness of care as measured by the Healthcare Effectiveness Data and Information Set (HEDIS).

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