Editor's note: Msnbc.com is following the online reaction to President Barack Obama's announcement that Osama bin Laden is dead.
Update: 2:00 a.m. ET
Second Life gets in the game as participants dance to "The Angry American." (image below, from Alexandrea Ryada via FirstPerson)
According to NBC's Luke Russert, Twitter user @ReallyVirtual accidentally live tweeted the activity that led to the 9/11 mastermind's death without knowing what was going on. The newsman writes, "Read back 9 hours to see his description of hearing the chopper of 1am. Amazing stuff."
@GhostOsama introduced himself to the world with a groan: "Well this sucks...I accidentally enabled location on my tweets."
1:30 a.m. ET
Reaction to the president's statement (click here to watch it in full) erupted on the Internet within moments.
"Bin Laden dead. My dad died on 911. I feel free," tweeted one woman.
Others, including filmmaker Michael Moore, used Twitter to ask for a moment of silence in honor of the victims of Sept. 11.
On Facebook, users changed their profile pictures. "Change your profile picture to an American flag in honor and recognition of our soldiers who took down Osama Bin Laden in Pakistan! Finally the great terrorist mastermind is dead. God bless the USA," said one user.
Twitter account @osamainhell announced itself to the world with a cheeky "Wait, what?" while @Real_Bin_Laden moaned that he was "watching footage of people partying in NYC," and that "If I didn't know better, I'd think you guys really didn't like me..."
Jack Bauer - the face of Fox's "24" - began trending on Twitter in the hours after the president's speech. "Right now @BarackObama is telling Jack Bauer he will never be able to thank him enough but sadly he must now leave the Country," tweeted one user.
Google Maps wasn't immune to the reaction: The mastermind's mansion hideout in Abbottabad, Pakistan, about 80 miles north of Islamabad, was mapped within hours. According to the Atlantic's Nicholas Jackson, the site is "about 800 feet to the west is the Cantt Police Station." Foursquare users don't worry: If you're ever in the neighborhood, you can now check in via the location service.
Some - likely still riding high from the correspondent's dinner - took to the the vast spaces of the Internet - for a victory lap of sorts (image below, h/t http://mikerelm.tumblr.com/post/5124100463).
Many noticed the eerie date of the announcement: May1 is also the day Germany announced Hitler's death.