Chef Graham Elliot uses his Twitter account at his restaurant in Chicago, but also tweets about current events and fantasy football picks. He even uses Twitter to let his followers make decisions about the music the restaurant plays. (Associated Press)
Twitter co-founder Biz Stone, left, talks about changes to the social network at Twitter headquarters in San Francisco, Tuesday, Sept. 14, 2010. Twitter is turning its short-messaging website into a multimedia showcase by adding a new pane that will make it easier for its 160 million users to peruse photos and video. (AP Photo/Marcio Jose Sanchez)
Associated Press movie critic Christy Lemire works on her Twitter page at her computer at the Associated Press bureau in Los Angeles on Wednesday, Sept. 8, 2010. (AP Photo/Nick Ut)
NASA's muscular R2 astronaut "helper" robot has announced by Twitter that it has no gender. (NASA photo)
This screen shot taken from the microblogging site Twitter.com early Sunday morning Aug. 1, 2010 shows the Twitter page that greeted users announcing Twitter being down for planned maintenance. According to Twitter the maintenance is scheduled between 2 a.m. 7 a.m. EDT Sunday. As such in that time some users will not be able to access Twitter. (AP photo)
President Obama gets high marks in the Twitter realm as a "modern multitasker" who has delivered "intelligence, rationalism, courage" in his first 100 days in the White House.