Twitter. It's what's happening.

• https://twitter.com
• https://twitter.com/signup
• http://m.twitter.com
• https://blog.twitter.com
• http://status.twitter.com
• https://about.twitter.com/careers
• https://about.twitter.com/products
• https://marketing.twitter.com
• https://business.twitter.com
• http://support.twitter.com/forums/26810/entries/78525
• https://dev.twitter.com/web/embedded-tweets
• https://dev.twitter.com/overview/terms/agreement
• https://dev.twitter.com/overview/terms/policy
• http://support.twitter.com/articles/14226-how-to-find-your-twitter-short-code-or-long-code