Oct. 5, 2005: “Twilight,” Stephenie Meyer’s first book in the now mega-popular series, is published.
>> Dec. 9: “Brokeback Mountain” is released and later wins three Oscars, legitimizing the career of Heath Ledger.
March 21, 2006: The microblogging Web site Twitter, which Clarks, Neb., native Evan Williams helped found, launches.
Celebrity gossip Web site TMZ.com becomes a legitimate (sort of) news source after breaking the story of Mel Gibson’s DUI.
Sept. 12: A series of viral Internet videos posted by someone with the username “lonelygirl15” is revealed to be a stunt performed by actress Jessica Rose.
Nov. 19: Nintendo releases the Wii, the first mainstream game console to use motion-sensitive controllers. It’s the impetus for side effects such as Wii elbow and smashed flat-screen televisions.
Feb. 16, 2007: Britney Spears shaves her head. Remember that?