Drupal Marketers page links redirects to 404 page not found.

On this page https://www.drupal.org/marketers, some of the links under Drupal integrations are linked to a non existing pages and showing a 404 page not found error. The links like Facebook, Linkedin, Twitter, Google plus are showing 404 page not found error.

Source: https://www.drupal.org/project/issues/rss/documentation