Television
NBC’s America’s Got Talent asks fans to vote via Tweet
AGT invites TV viewers to participate directly in the live show.
@adamlevine, @blakeshelton take over “The Voice”
Star hosts took over each other’s Twitter accounts to live-tweet show.
CBS’ Under the Dome cast live-tweets the premiere
CBS launches new show with a successful Twitter strategy.
Daredevil Nik Wallenda takes over Twitter
Without a net: How a TV show built social buzz for a daring stunt.
HBO’s True Blood organized a conversation with a hashtag
How the cast shared photos and promoted a hashtag to boost fan engagement.
Government
@JohnKerry account boon to @StateDept
The secretary’s return to Twitter drew new followers to @StateDept account.
Argentinian president live-tweets breaking news
President Kirchner explained news involving re-routing of plane.
Arne Duncan thinks beyond the work day with a Saturday Q&A
The education secretary hosted an impromptu, successful Q&A on a Saturday.
#AskIraq: Ambassador Faily takes your questions
Iraqi Ambassador to U.S. hosted 90-minute Twitter Q&A.
How @USTreasury tweeted new dollar bill
Tweets fueled excitement for release of Secretary Jack Lew’s signature.
Live-tweeting a cabinet reshuffle in Canada
Prime Minister Stephen Harper gave the facts directly to the people.
NTSB: Live-tweeting a breaking news event
The National Transportation Safety Board updates the public during a crisis.
Twitter enhances Rand Paul’s filibuster
The public turned to Twitter to voice support of Kentucky senator’s filibuster.
Twitter takes off at NASA MAVEN social event
NASA invited space fans to a social media event to build buzz before launch.
U.S. Navy tweets updates during breaking news
How the Navy kept the facts straight during the Navy Yard shooting.
UN tweets its General Assembly
Twitter was integral part of conversation around #UNGA from the beginning.
Vine videos, Tweets show support for Davis filibuster
Protest inside and outside of statehouse was captured on Twitter and Vine.
Sports
@KCChiefs’ Twitter campaign reaches decibel levels
How @KCChiefs used Twitter to fuel their record-breaking Arrowhead Stadium roar.
@MichaelPhelps takes over the @Ravens account
The decorated Olympian live-tweets from @Ravens during a December game.
@NFL holds real-time Twitter #MockDraft
The NFL used Twitter to integrate #NFLMockDraft into its programming.
@rogerfederer serves up questions for fans
Roger Federer aces impromptu Q&A, asking fans questions with #AskedRF.
Kobe Bryant live-tweets a re-run of his 81-point game
Fans used #countonkobe to join the Lakers superstar’s conversation.
Marisa Miller and Andre Iguodala take over @49ers
The model and NBA star live-tweet from @49ers and increase engagement.
Phil Jackson tweets the Final Four
Legendary coach drives the conversation around college basketball’s biggest event.
SportsCenter: Hitting a home run with hashtags
ESPN’s flagship show asks viewers to contribute highlights on Twitter.
Team USA holds digital sendoff event on Twitter
Olympians interact with fans and answer their questions.
Twitter is all the rage at MLB All-Star Game
Fans vote as MLB and its players live-tweet during the All-Star Game.
News
@GMA creates social frenzy over @onedirection concert
GMA drove conversation around a live concert with a flurry of Tweets and videos.
Bill Maher takes over @HuffingtonPost for #SOTU
@HuffingtonPost had comedian Bill Maher live-tweet the State of the Union.
The Boston Globe uses Twitter during a crisis
The Globe kept the public informed and found new tips through Twitter.
CNN’s Blackfish dominates the Twitter conversation
Activists, celebrities and others swarm to Twitter over orca documentary on CNN.
TODAY sparks a dialogue with #DearCongress
How @TODAYshow engaged viewers in the government shutdown debate.
Music
Pitbull tweets a day in the life leading up to #Pitbowl
Rapper uses Twitter to “Feel this moment” with his fans.
@Imaginedragons contest puts fans on top of the world
Fans were encouraged to find hidden easter eggs in band’s music video.
Alicia Keys connects with fans with #AliciaDedicates
The singer-songwriter uses Twitter to dedicate songs to fans on her tour.
Coldplay launches a worldwide #lyricshunt
The band sent fans to local libraries around the world using Twitter.
Depeche Mode uses Vine to interact with fans
How the band documented its tour in six-second increments.
Jason Derulo posts Vine videos at Good Morning America
Musician uses Vine to give fans a virtual backstage pass to a big show.
Nonprofits
#GivingTuesday: Encouraging and tweeting stories of charity
#GivingTuesday campaign succeeded in sharing message, influencing the public.
Raise awareness for charity: water
How a charity uses Twitter in creative ways to build a huge following.
Room to Read advocates for global literacy
Twitter helps a nonprofit promote education in developing countries.
Faith
Pope Francis takes his followers around the world
The Pope uses Twitter to connect with remote followers.
World has chance to #AskSriSri at Twitter Town Hall
Faith leader Sri Sri Ravi Shankar connected with his followers on Twitter.