WPMarmite

Aweber Subscribers Count is a simple WordPress plugin that displays the subscriber count of a specific aweber list.
The plugin has an option page in order to connect to the aweber account and select the list you want to use.
Paste the shortcode with your list name in any post, page or widget: [displaycount list=”your_list_name”]
You can combine lists using this shortcode : [displaycount list=”your_list_name_1,your_list_name_2″]
You can display your list count anywhere in your theme by using

Aweber Subscribers Count

Aweber Subscribers Count is a simple Wordpress plugin that displays the subscriber count of a specific aweber list.

viperchill

ViperBar adds an attractive bar to your site header, which you can use to increase blog or newsletter subscribers. It includes built in styling, Aweber & Feedburner integration, conversion rate tracking, split-testing, themes, and much more.
<a href="http://www.viperchill.com/" rel="nofollow ugc">ViperChill</a>, a blog on Viral Marketing, is the creator of this plugin. If you want to take your blog to the next level, you should read this post on <a href="http://www.viperchill.com/wordpress-seo/" rel="nofollow ugc">WordPress SEO</a>.
<h3>Donations</h3>
You may make donations at http://www.viperchill.com

ViperBar

ViperBar adds an attractive bar to your site header, which you can use to increase blog or newsletter subscribers.

Aweber Subscribers Count vs ViperBar