“Network neutrality” (also called “net neutrality”) is the idea that an Internet access provider must provide access to all parts of the Internet without prejudice — without blocking areas completely, without slowing areas down, etc. According to net neutrality an access provider should treat all Internet traffic equally no matter what it is (e‑mail, Web page, video, game, etc.) or where it comes from.
This is a major issue, folks. If you haven’t been there yet, get yourselves over to Save the Internet and Do Something Now.