Happy birthday, Twitter!
The social messaging juggernaut -- used by everyone from journalists to world leaders to Charlie Sheen -- was launched five years ago. The first human tweet, by co-founder Jack Dorsey, was published by March 21, 2006. (Dorsey's first tweet: “inviting coworkers.”)
The service now averages 140 million tweets per day -- one per character! -- up from roughly an average of 50 million a year ago. (About 177 million tweets were published on March 11, the day of the earthquake and tsunami in Japan.)
There are also more than 400 full-time employees working at Twitter, up from a handful in 2006.
To celebrate, here are links to TheWrap's series on the most important people to follow on Twitter, from media to movies to television, industry by industry.
>> 25 Media Insiders to Follow Right Now
>> 10 More Media Tweeters to Follow
>> 50 TV Insiders to Follow on Twitter
>> 25 PR Pros to Follow Right Now
>> 25 Directors Whose Tweets Are Worth Following
>> 25 TV Superfans to Follow on Twitter
>> 30 Must-Follow Music Insiders on Twitter
>> Kanye! Gaga! Bieber! 10 Rockers & Rappers You Must Follow
>> 25 Film & TV Writers You Must Follow on Twitter
>> 25 Movie Stars Worth Their Tweets
>> 15 Show Runners Worth Following on Twitter
>> Tweet This: The Top 25 Magazines on Twitter
