This is a list of people or organizations who use Twitter.
|Lady Gaga||@ladygaga||Lady Gaga on Twitter||align="center"|2008||1|
|Justin Bieber||@justinbieber||Justin Bieber on Twitter||align="center"|2009||2||As of April 2012[update], Justin Bieber's Twitter has the second most popular Twitter account, behind Lady Gaga. In April 2012 the account had over 20 million followers. Bieber was frequently a trending topic on Twitter upon the feature's initial launch, and was named the top trending star on Twitter in 2010. In March 2012, Bieber fans launched an unsuccessful attempt to unseat Lady Gaga as the most popular celebrity on Twitter.
Bieber's tweets about the 2011 Egyptian revolution (at a time when he had roughly 8 million followers) generated in 32,000 responses each, which made Bieber's Twitter account one of the single largest nodes for discussion about the uprising.
|Rihanna||@rihanna||Rihanna on Twitter||align="center"|????||4||At the beginning of March 2011, Rihanna asked fans to help her select her next single, following the release of "S&M" (2011) from her fifth album Loud (2010). Via Twitter, she asked fans to choose from "Cheers (Drink to That)", "Man Down", "California King Bed" or "Fading". The most popular choice would have its video filmed at the end of March 2011. Fans selected "California King Bed" as the next single to be released from the album in the United States; while internationally, it served as the fourth single, as it was announced. In the United States, however, "Man Down" was sent for radio adds before "California King Bed".
In late December 2011, Rihanna again used Twitter to ask her fans which song from her sixth album Talk That Talk should be released as the third single. On January 10, 2012, Rihanna announced that "Talk That Talk" will be the next single from the album while tweeting, "#TALKthatTALK love u guys! Been missin u,". Along with the message, she also debuted the single's cover. The black and white image features Rihanna crouching against a wall and wearing punk clothes.
|Barack Obama||@BarackObama||Barack Obama on Twitter||align="center"|2007||7|| As of 28 May 2012[update] Barack Obama's account ranked 7th in terms of followers, having peaked in May 2010 at fourth. Obama was described the first President to respond to questions on Twitter. Obama has at various times held public forums in which he fielded questions posted on Twitter such as the Townhall @ the White House in 2011.
Following the 2008 United States presidential election, the Democratic National Committee was believed to have taken over the account and in a speech in November 2009, Obama stated "I have never used Twitter", despite having over 2.6 million followers. The account is "run by #Obama2012 campaign staff. Tweets from the President are signed -bo."
|Ashton Kutcher||@aplusk||Ashton Kutcher on Twitter||align="center"|2008||18||Ashton Kutcher's Twitter account became the first to have with 1 million followers in April 2009, and spent over 13 months as the world's most followed twitter account. As of 27 May 2012[update], Kutcher ranked 18th. In 2009 Kutcher and Demi Moore were referred to as Twitter's first celebrity couple, with 7,800 and 5,600 followers respectively. They were a measuring stick by which Twitter was determined to have gone mainstream in early 2009.
In 2011 Kutcher turned over his Twitter account to a production company after erroneously tweeting in protest of the firing of Joe Paterno, assuming it was age-related (while it was actually related to the Penn State sex abuse scandal). 
Other notable feeds
|@fiksimini||Fiksimini on Twitter||????||Flash fiction||?|
|@Horse_ebooks||Horse ebooks on Twitter||????||Spam||344|
- ↑ Shiv Singh; Stephanie Diamond (April 3, 2012). Social Media Marketing For Dummies. John Wiley & Sons. pp. 143–. ISBN 978-1-118-06514-3. http://books.google.com/books?id=0Dnv9AZ8Tj4C&pg=PA143. Retrieved April 26, 2012.
- ↑ "'The Voice:' Justin Bieber updates fans on Twitter , singer to make announcement?". Entertainment Examiner (USA). April 16, 2012. http://docs.newsbank.com/openurl?ctx_ver=z39.88-2004&rft_id=info:sid/iw.newsbank.com:AUNB:EAEN&rft_val_format=info:ofi/fmt:kev:mtx:ctx&rft_dat=13DC80FB672ABFA8&svc_dat=InfoWeb:aggregated5&req_dat=1053B823C33F21F9. Retrieved April 24, 2012.
- ↑ "Soccer's Kaka tops 10 million followers on Twitter". Associated Press News Service. April 25, 2012. http://docs.newsbank.com/openurl?ctx_ver=z39.88-2004&rft_id=info:sid/iw.newsbank.com:AUNB:APNS&rft_val_format=info:ofi/fmt:kev:mtx:ctx&rft_dat=13E6168D001C4648&svc_dat=InfoWeb:aggregated5&req_dat=1053B823C33F21F9. Retrieved April 26, 2012.
- ↑ Justin Bieber Accounts for 3 Percent of All Twitter Traffic. TV Guide (September 8, 2010). Retrieved on April 24, 2012.
- ↑ "Bieber Tops Twitter Trend List". World Entertainment News Network (COMTEX News Network, Inc). 2010-12-16. http://trove.nla.gov.au/work/122734894. Retrieved April 26, 2012
- ↑ Tim Kenneally Reuters 7:18 pm CDT, March 28, 2012 (March 28, 2012). "Justin Bieber Vs. Lady Gaga: Fans wage epic war for Twitter dominance". Chicago Tribune. http://www.chicagotribune.com/entertainment/sns-rt-justin-bieber-lady-gagamt1thewrap36616-20120328,0,7289032.story. Retrieved April 24, 2012.
- ↑ Maksim Tsvetovat; Alexander Kouznetsov (October 6, 2011). Social Network Analysis for Startups: Finding Connections on the Social Web. O'Reilly Media, Inc.. p. 67. ISBN 978-1-4493-0646-5. http://books.google.com/books?id=Tn-L5WoCeygC. Retrieved April 26, 2012.
- ↑ Maksim Tsvetovat; Alexander Kouznetsov (October 6, 2011). Social Network Analysis for Startups: Finding Connections on the Social Web. O'Reilly Media, Inc.. p. 18. ISBN 978-1-4493-0646-5. http://books.google.com/books?id=Tn-L5WoCeygC. Retrieved April 26, 2012.
- ↑ Rihanna Asks Fans To Help Choose Her Next Single. MTV (UK and Ireland). Viacom International Media Networks (2011-03-01). Retrieved on 2011-04-02.
- ↑ Copsey, Robert (2011-03-12). Rihanna announces next single. Digital Spy. Hachette Filipacchi (UK) Ltd. Retrieved on 2011-04-02.
- ↑ Singles Release Diary. Digital Spy. Hachette Filipacchi (UK) Ltd. Archived from the original on 2011-05-05. Retrieved on 2011-05-05.
- ↑ California King Bed Germany Release. Universal Music Group (2011-05-17). Retrieved on 2011-05-18.
- ↑ Rihanna switches new single release dates?. Digital Spy. Hachette Filipacchi (UK) Ltd (2011-04-27). Retrieved on 2011-04-27.
- ↑ Rihanna Unveils 'Talk That Talk' Single Artwork. Capital FM (January 11, 2012). Retrieved on January 20, 2012.
- ↑ 15.0 15.1 Rihanna Reveals Next Single: 'Talk That Talk'. Billboard. Prometheus Global Media (January 11, 2012). Retrieved on January 11, 2012.
- ↑ Rihanna Reveals Next Talk That Talk Single. MTV News. Viacom (January 11, 2012). Retrieved on January 20, 2012.
- ↑ The Twitaholic.com Top 100 Twitterholics based on Followers. Twitaholic.com (2012-05-28). Retrieved on 2012-05-28.
- ↑ Bosker, Bianca (2010-05-24). Britney Spears Is Twitter QUEEN: Ashton Kutcher Loses His Top Spot (PICTURES). The Huffington Post. Retrieved on 2012-05-28.
- ↑ Obama, Barack (24 May 2012). @whitehouse status. Twitter. Retrieved on 26 May 2012.
- ↑ Klapper, Ethan (24 May 2012). Barack Obama Twitter Chat: President Answers Questions On Twitter. Huffington Post. Retrieved on 26 May 2012.
- ↑ Twitter Presents Townhall @ the White House. Twitter (2011-07-06). Retrieved on 2012-05-28.
- ↑ President Obama @ Twitter Town Hall: Economy, Jobs, Deficit, and Space Exploration. Whitehouse.gov (2011-07-06). Retrieved on 2012-05-28.
- ↑ Milian, Mark (2009-11-16). President Obama: 'I have never used Twitter'. Los Angeles Times. Retrieved on 2012-05-28.
- ↑ O'Brien, Michael (2009-11-16). Obama: 'I have never used Twitter'. The Hill. Retrieved on 2012-05-28.
- ↑ Barack Obama. Twitter. Retrieved on 2012-05-26.
- ↑ Kutcher’s Twitter flock first to hit 1 million: Actor beats CNN in race to milestone, pledges $100,000 in malaria fight. MSNBC (2009-04-17). Retrieved on 2012-05-26.
- ↑ The Twitaholic.com Top 100 Twitterholics based on Followers. Twitaholic.com (2012-05-27). Retrieved on 2012-05-27.
- ↑ Milian, Mark (2009-01-29). Ashton Kutcher, Demi Moore: first Twitter celeb couple. Los Angeles Times. Retrieved on 2012-05-27.
- ↑ Smith, Peter (2009-02-09). Twitter and the Dalai Lama. IT World. Retrieved on 2012-05-27.
- ↑ Ashton Kutcher’s Joe Paterno tweet: Should celebs manage own Twitter feeds?. The Washington Post (2011-11-10). Retrieved on 2012-05-26.
- ↑ Villarreal, Yvonne (2011-11-09). Ashton Kutcher prematurely defends fired Penn State coach Joe Paterno. Los Angeles Times. Retrieved on 2012-05-27.
- ↑ D'Zurilla, Christie (2011-11-10). Ashton Kutcher's Paterno tweet sends actor running for PR cover. Los Angeles Times. Retrieved on 2012-05-27.
- ↑ Hughes, Sarah Anne (2011-11-10). Ashton Kutcher turns Twitter over to pros after sending Joe Paterno tweet. The Washington Post. Retrieved on 2012-05-26.
- ↑ The Twitaholic.com Top 400 Twitterholics based on Friends in.
| This article uses material from the Wikipedia article List of Twitter users, that was deleted or is being discussed for deletion, which is released under the Creative Commons Attribution-ShareAlike 3.0 Unported License.