Experts in the explosively growing field of political digital technologies have developed an innovative terminology to describe what they do — a lexicon that is virtually incomprehensible to ordinary voters. This language provides an inkling of the extraordinarily arcane universe politics has entered:

Geofencing and other emerging digital technologies derive from microtargeting marketing initiatives that use consumer and other demographic data to identify the interests of specific voters or very small groups of like-minded individuals to influence their thoughts or actions. Microtargeting first had a significant impact on American politics in state level campaign work by Alec Gage, a Republican, and his firm TargetPoint in 2002.

Source:  The New York Times