The Dem election machine has been touting a massive database of voter information, allowing them to micro-target voters.  The early version was used by the Obama-bots in 2008, then a more refined version in 2012. It has incredibly detailed info on each voter.

Google and Facebook are operated by well-known lefties.

Speculation/question: How much of the incredibly huge and detailed amount of data that these two organizations collect on individuals could be / is funneled into a politically-driven marketing database that would help the Dems figure out the exact right email to send to get them to the pols?

Scary thought.

What are the more libertarian / conservative sources for similar purposes?

Just say “no” to liberal-owned data-mining companies.