If you've ever been online for more than 10 minutes, you probably know that the internet is crawling with know-it-alls. People try to one-up each other in all kinds of fields: pop culture, politics, and even simple everyday physics. If anything, the internet is the birthplace of the "Um, actually," catchphrase.
But netizens also love humbling those who trust their intellectual capacities too much. The second incarnation of the ill-fated Facebook group of the same name, "People Incorrectly Correcting Other People 2.0", is the place where folks post people embarrassing themselves by acting like they know better. General rule: if you're correcting someone, better check with Google first to see if you're not mistaken.
More info: Facebook
