Twitter

Twitter is a on the Internet, in which one can communicate with other people in messages of up to 140 characters. Muggle author J. K. Rowling is a member of twitter, and used the service to rally support for the Scottish rugby team via the #wizards4scotlandrugbyteam.

Behind the scenes

 * In its only in-universe mention in the series, Twitter is incorrectly spelled with a lowercase "t" (twitter).
 * Various individuals and companies associated with the Harry Potter series have accounts on Twitter, including J. K. Rowling, Pottermore and even the film series itself.

Appearances

 * Pottermore