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:
<ol>
<li>
It redirects only the two main feeds of the blog and not all. The category, tag and author feeds are still accessible
</li>
<li>
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.
</li>
<li>
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.
</li>
</ol>

Hetjens Feed Redirect

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

adiian

Features:
<ul>
<li>Show “Subscribe by RSS” and “Subscribe by email”</li>
<li>Configurable apearance through CSS</li>
<li>Feedburner Feed Id configurable through widget panel</li>
</ul>

Subscribe Here Widget

Subscribe Here displays a visible plugin widget in the sidebar with Subscribe by Rss & Subscribe by Email(through Feedburner) options.

Hetjens Feed Redirect vs Subscribe Here Widget