Warren Buffett, arguably the world's most successful investor, is a man of many talents. He invests in stocks, buys companies, builds empires, and now -- he tweets. 

Buffett's first tweet was not mind-blowing investment advice or an announcement of his latest deal, but simply:

"Warren is in the house"

 -- @WarrenBuffett

Mr. Buffett is not the only major name to recently join the service; former U.S. president Bill Clinton is also a new member.

A new era
The decision for the leader of Berkshire Hathaway (NYSE:BRK-B) (NYSE:BRK-A) to join the service highlights a couple of notable trends. First, it shows just how well-respected Mr. Buffett truly is -- the account generated thousands of followers within minutes. Second, the reaction highlights the impact that Twitter is having not only on social interaction but on the investing community.

My fellow Fool, Morgan Housel, recently examined the role of the platform on the investing world

Buffett's first tweet also comes at an interesting time for his company. The Berkshire Hathaway annual shareholder meeting is this weekend -- perhaps the Oracle will answer some questions via Twitter in addition to the famous Q&A set for Saturday.

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David Hanson has no position in any stocks mentioned. The Motley Fool recommends Berkshire Hathaway. The Motley Fool owns shares of Berkshire Hathaway. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.