It’s on now! The battle between websites and users that are fed up with online advertising is about to come to a head, and we’ll have Facebook to thank for it. Browser users that surf with ad blockers enabled often see polite messages on certain websites asking them to turn off the functionality, as it robs content providers of their lifeblood:

Source: Hot Hardware – Facebook Sticks Up Middle Digit To Ad Blockers And Will Circumvent Them