title: Adding new option in sharepoint 2010 site actions
body: <p>I am working on sharepoint server 2010. I want to add an option to</p>
  
  <blockquote>
    <p>Site
    Librart Tools ribbon
    Documents
    Share &amp; Track</p>
  </blockquote>
  
  <p>By default a link called "E-mail a Link".</p>
  
  <p>How can i add custom link by using feature enabling programatically.....?</p>