It is always better to make the visitors to Subscribe to the RSS feed of our blogs to get Returning visitors.
Here is a simple way to do it.
Copy the below code (do not forget to change the feedURL to your site's RSS feed URL) and add it to any part of your site.
<script>var subscribe = {
feedURL: 'http://www.didiknow.com/feeds/posts/default'
}</script>
<script
src="http://orkut-share.googlecode.com/svn/trunk/subscribe.js">
</script>
