Outsource to Disqus?
From gwern.net's default.html
<div id="disqus_thread"></div>
<script type="text/javascript">
(function() {
var SHORTNAME = 'example'; // Your website's shortname on Disqus
var dsq = document.createElement('script'); dsq.type =
'text/javascript'; dsq.async = true;
dsq.src = 'http://disqus.com/forums/gwern/embed.js';
(document.getElementsByTagName('head')[0] ||
document.getElementsByTagName('body')[0]).appendChild(dsq);
})();
var disqus_shortname = 'gwern';
(function () {
var s = document.createElement('script'); s.async = true;
s.src = 'http://disqus.com/forums/gwern/count.js';
(document.getElementsByTagName('HEAD')[0] ||
document.getElementsByTagName('BODY')[0]).appendChild(s);
}());
</script>
<noscript>Enable JavaScript for Disqus comments</noscript>
</body>
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gwern
http://www.gwern.net
Disqus is a popular solution.
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