Twitter launched the @anywhere functionality which allows web developers to integrate Twitter functionality right into their own websites and web projects. Essentially the @anywhere functionality allows anyone to post a tweet from non-Twitter websites that use the @anywhere functionality. As part of this new functionality, developers will be able to place Twitter hovercards within a site using “a few lines of JavaScript." The @anywhere functionality will also allow a remote sign-in system to work with external websites.
The New York Times, Yahoo and MSNBC News have already begun using the @anywhere functionality as part of a live demonstration, which will allow public users to "follow" staff writers via the new hovercards that appear in their writer profiles.