Twitter: What are you doing?

What is Twitter?

Twitter is a service for friends, family, and co–workers to communicate and stay connected through the exchange of quick, frequent answers to one simple question: What are you doing?

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It's one of the fastest-growing phenomena on the Internet.

New York Times
Incredibly useful

Wired
Twitter is the first thing on the web that I've been excited about in ages.

Jason Kottke, Blogger

What is Twitter?

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