Five years ago, Twitter founder Jack Dorsey sent out the first tweet ever to just 7 followers. Today, the most popular person on Twitter (Lady Gaga) has over 13 million followers and Twitter as a platform just hit 100 million active users, announced the company in a blog post.

In a few weeks, Twitter will also be supported in 17 different languages, allowing it to expand its reach globally.

Twitter counts the following individuals and organizations among its users.

- 35 global heads of states (who use Twitter as a primary way to communicate with their constituencies)

-  Leaders of many major cities (e.g. the Mayor of London)

-  Every member of the U.S. Cabinet

-  84 percent of U.S. state governors

-  Over 40 percent of top global religious leaders (e.g. the Pope)

-  Two-thirds of athletes from NBA

-  Many athletes in the NFL, MLB, NHL, MLS

-  Professional cricket players in India and professional soccer players in Europe

-  99 percent of America's top 200 non-profits

-  87 percent of Billboard's Top 100 musicians of 2010

-  At least 1 lead actor from each of the top 50 Nielsen-rated TV shows

Like many innovative products, Twitter created a new space for itself and changed the world in the process.

It leveled the playing field for entity-to-mass communication; any person and entity has as the same rights as anyone else.  Twitter also conveniently brought all the voices together on one platform, which makes them easy to follow. 

In reaching 100 million active users, it has become the world's megaphone and is now one of the most common tools individuals and organizations use to communicate to their followers and the public.

Twitter CEO Dick Costolo said the company's core mission is connecting people everywhere to what's most meaningful to them, reported Business Insider.

Revenues, he said, is merely a necessity that serves as a means to an end.