"It in its simplest form, Big Data describes the confluence of two forces — one technological, one social. The new technological reality is the amount of processing power and analytics now available, either free or at no cost. Google has helped pioneer that; as Wired puts it, one of its tools, called Dremel, makes “big data small.”
This level of mega-crunchability is what’s required to process the amount of data now available online, especially via social networks like Facebook and Twitter. Every time we Like something, it’s recorded on some cosmic abacus in the sky.
Then there’s our browsing history, captured and made available to advertisers through behavioral targeting. Add to that available public records on millions of voters — political consultants and media strategists have the ability drill down as god-like dentists"
Via Artur Alves