Twitter: A Whole World in Your Hands

On a mobile phone? Check out m.twitter.com! Skip to navigation Skip to sign in form Select Language ...  English Japanese - 日本語 What is Twitter? What? Why? How? 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? utmx_section("Signup Button") Get Started—Join!  Watch a video! Please sign in user name or email address: password: Remember me Forgot password? Click here. Already using Twitter from your phone? Click here. ...