WordPress Plugin Amber Description:
Whether links fail because of DDoS attacks, censorship, or just plain old link rot, reliably accessing linked content is a problem for Internet users everywhere. The more routes we provide to information, the more all people can freely share that information, even in the face of filtering or blockages. Amber adds to these routes.
Related to WordPress Plugin Amber
WPSlug.com data has a list of 14 WordPress CMS installations Using the WordPress Plugin Amber.