<p>Enabling the Drupal module will allow you to:</p>
<ul>
  <li>register your site with a server, including (optionally) posting information on your installed modules and themes and summary statistics on your number of posts and users, information that can help rank Drupal modules and themes</li>
  <li>enable other sites to register with your site</li>
  <li>allow members on all sites using the Drupal module to log in to your site without registering using their distributed identification</li>
  <li>allow members to log in to any other site that uses the Drupal module, using a login name that looks much like an e-mail address: <em>username@example.com</em></li>
</ul>
