Twitter

Twitter is a global community of friends and strangers answering one simple question: What are you doing? Answer on your phone, IM, or right here on the web! A global community of friends and strangers answering one simple question: What are you doing? Answer on your phone, IM, or right here on the web! When you send in a mobile text (SMS), Twitter sends it out to your group of friends and posts it to your Twitter page. Your friends might not have phone alerts turned on so they may check your web page instead. Likewise, you receive your friends mobile updates on your phone. When you send a text normally, you might send it to a phone or an email address. With Twitter, you use what is called a “short code.” That's what 40404 is—a special phone number you use to interact with Twitter on your mobile phone. Twitter is a free service. At some point we may introduce optional, for-pay features or services but basic usage will remain free.