title: Wrong thumbnail image when using facebook share button
body: <p>When I click the share button for one of my wordpress posts, a popup window successfully opens. It displays the correct thumbnail image, and the title and summary text are correct as well.</p>
  
  <p>However, when I actually go and look at the share on facebook, the thumbnail is not correct. For some reason facebook always shows the thumbnail for the first share I ever made for every single share I make.</p>
  
  <p>What's weird is the title and summary are always correct, but I just can't get the thumbnail to work properly.</p>
  
  <p>Here is the code I use for my Facebook share buttons:</p>
  
  <pre><code>&lt;a class="facebook" onclick="return !window.open(this.href, 'Facebook', 'width=640,height=300')" href="http://www.facebook.com/sharer.php?s=100&amp;amp;p[title]=This Is The Title Of My Post&amp;amp;p[summary]=This is the summary of my post.&amp;amp;p[url]=http://www.mywebsite.com/individual-wordpress-post/&amp;amp;p[images[0]=http://www.mywebsite.com/images/this-is-my-thumbnail-image.jpg" target="_blank"&gt;&lt;img class="size-full wp-image-96 alignleft" alt="shareonfacebook" src="http://www.mywebsite.com/images/this-is-my-facebook-share-button-image.jpg" /&gt;&lt;/a&gt;
  </code></pre>
  
  <p>I put this code together after reading the following answers <a href="https://stackoverflow.com/questions/6138780/facebook-share-button-and-custom-text/6138879#6138879">here</a>.</p>
  
  <p>Any ideas why the title and summary are always correct, but the thumbnail is never right? Remember, when I click the share button, the thumbnail is correct in the popup window but not the same when I go and look at the share on facebook.</p>
  
  <p>Thanks for the help I really appreciate it.</p>