"Hundreds of conference-goers kept tabs on each other via constant twitters.
Panelists and speakers mentioned the service, and the bloggers in attendance touted it." By late November 2010, an average of a dozen updates per day were posted on the astronauts' communal account, @NASA_Astronauts.
Twitter was created in March 2006 by Jack Dorsey, Noah Glass, Biz Stone, and Evan Williams and launched in July of that year. In 2012, more than 100 million users posted 340 million tweets a day, Twitter's origins lie in a "daylong brainstorming session" held by board members of the podcasting company Odeo.
On April 5, 2011, Twitter tested a new homepage and phased out the "Old Twitter".
On December 8, 2011, Twitter overhauled its website once more to feature the "Fly" design, which the service says is easier for new users to follow and promotes advertising.
The number of users was up 40% from their September 2011 number, which was said to have been at 100 million at the time.
Twitter released Vine as a standalone app that allows users to create and share six-second looping video clips on January 24, 2013.
Vine videos shared on Twitter are visible directly in users' Twitter feeds.