Allan Collins

Ever wanted to see your FeedBurner stats on the WordPress Dashboard? Well now you can with this simple plugin. The plugin uses FeedBurner’s Awareness API to get your feed subscriber stats directly from FeedBurner. So now you can easily check your subscriber stats from the WordPress Administration section.
-Graphing of stats from 01-01-2008 to the present.
<h3>Sidebar Widget</h3>
If you have a widget ready dynamic sidebar, you can add the FSS Widget.
Add this code: [fss_subscribers] to view the subscriber count.
You can customize how this looks for example:
There are [fss_subscribers] subscribers to this blog.
WILL DISPLAY:
There are 20 subscribers to this blog.

Feed Subscriber Stats

This plugin will show the number of subscribers according to FeedBurner/Google. Important: WordPress 2.7 and up.

S Hetjens

This plug-in redirects requests to the main or comment feeds, and only theses two, to Feedburner or a similar service. In comparision to the original Feedsmith-plug-in is has three advantages:
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It redirects only the two main feeds of the blog and not all. The category, tag and author feeds are still accessible
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If you need access to the original blog feed you can add the URL parameter “noredirect” (i.e. /feed/?noredirect) to your feed address and it will not forward your request.
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The Plugin is more integrated into the administration interface. It adds its settings to the default “reading” settings pages and do not create an own page.
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Hetjens Feed Redirect

This plug-in redirect reqests to the main or comment feed of the blog to Feedburner or a similar service.

Feed Subscriber Stats vs Hetjens Feed Redirect