[Plugin: WPBook] "Share this post" is not working

Looking at one of the individual posts: http://apps.facebook.com/themattefinish/2010/12/end-to-end/

And then viewing the frame source for the iframe, I see that you have this as the first content in the body:

<div id="fb-root"></div>
   <script>
   window.fbAsyncInit = function() {
   FB.init({appId: "121351871216273", status: true, cookie: true,
		 xfbml: true});
	};
 (function() {
  var e = document.createElement("script"); e.async = true;
 e.src = document.location.protocol +
   "//connect.facebook.net/en_US/all.js";
 document.getElementById("fb-root").appendChild(e);
}());
</script>

Inside Facebook, the script for the share button actually looks like this:
<a onclick="window.open('http://www.facebook.com/sharer.php?s=100&p[title]=End-to-end&p[summary]=%0D%0A+++%0D%0A+++window.fbAsyncInit+%3D+function%28%29+%7B%0D%0A+++FB.init%28%7BappId%3A+%22121351871216273%22%2C+status%3A+true%2C+cookie%3A+true%2C%0D%0A%09%09+xfbml%3A+true%7D%29%3B%0D%0A%09%7D%3B%0D%0A+%28function%28%29+%7B%0D%0A++var+e+%3D+document.createElement%28%22script%22%29%3B+e.async+%3D+true%3B%0D%0A+e.src+%3D+document.location.protocol+%2B%0D%0A+++%22%2F%2Fconnect.facebook.net%2Fen_US%2Fall.js%22%3B%0D%0A+document.getElementById%28%22fb-root%22%29.appendChild%28e%29%3B%0D%0A%7D%28%29%29%3B%0D%0ATaken+from+the+door+of+a+moving+train+on+a+bridge+in+West+Bengal%2C+India.+It+was+scary+%5B...%5D&p[url]=http%3A%2F%2Fapps.facebook.com%2Fthemattefinish%2F2010%2F12%2Fend-to-end%2F','sharer','toolbar=0,status=0,width=626,height=436'); return false;" class="share" title="Send this to friends or post it on your profile.">Share This Post</a></span>

So what we’re grabbing as the “summary” to be shown when people share is the javascript.

We get the summary in WPBook from:
get_the_excerpt()

So something else is putting javascript into your excerpts.

I suppose perhaps we could run that excerpt through a filter to strip javascript and other html tags, like we do when publishing to the wall?