Twitter officially arrived when Captain Sullenberger sent US Airways flight 1549 splashing down into the Hudson. Instagram's moment was last week, when forty-nine states—fully ninety-eight percent of American states—were doused with snow. More »

Read more: http://feeds.gawker.com/~r/gizmodo/full/~3/4p_s8p2Cl4g/the-revolution-will-be-instagrammed