Do you blog on a wordpress blog ? well, if you do, then here is a smart plugin that can help you increase the feed or email subscribers . Many users, (including me) have experienced the increase in the subscriber count using similar type of plugins . This plusin is very light weighted and of-course free of cost .
wp_emailfeedburnerpop is one of those plugins that Im talking about. This one is indeed one of the coolest pop down plugin Ive ever seen. Most of the plugins of this kind work only on home pages of the blog, but this one works on every page, which really impressed me.
You can get one from here. After visiting this link, follow the installation procedure to install the plugin successfully. Hope this one helps, let me know if you have few more plugins of this kind.