User to send a list of selected nodes via e-mail to the admin
If you don't have a custom module created yet, make one (always good to have at least one custom module for misc tasks).

Create a menu callback for sending the node information in you hook_menu().

function hook_menu(){
  return array(
    'user/%/sendNodes'=&gt;array(
      'type'=&gt;MENU_CALLBACK,
      'page callback' =&gt; 'hook_send_nodes',
      'page arguments' =&gt; array(1),
    ),
  );
}


Create the callback function to send the nodes.

function hook_send_nodes($uid){
  // Fetch all flagged nodes from database for this $uid.
  // Send this node information through drupal_mail(). 
  // After your nodes have been sent, use drupal_goto().     
}


So now, you can create a link to the URL user/UID/sendNodes and that will send the nodes.
Obviously this is all pseudo-code, but the idea is there.