Email Alert subscribe form.
Add your blog to any browser! Get a bottom bar inviting users to subscribe to your website. It will add a custom RSS reader extension to their browser
Subscribe Remind will add a brief message at the bottom of each post inviting users to subscribe to your RSS feed or follow you on Twitter.
The Online Outbox plugin allows you to easily add a subscription form to your WordPress site, to grow your list of email subscribers of your Email New
Install Wikio buttons on your blog!
Automatically prompt subsription message to promote and make visitor subscribe your feed every they post a new comment
Help people subscribe to your blog using email or any feed reader, such as Google Reader, My Yahoo! and many more feed services.
This plugin will provide simple integration to your account with SubscriptionDNA.com's Enterprise Subscription Billing and Members Management Platform
Sidebar widget to easy customize and display your subscribers buttons. All settings are available from Sidebar Widget Admin.
Add a Subscribe to MadMimi Checkbox after the comment form
Add an iCal feed to your site for the Events Calendar plugin
Add a list of "Subscribe" links to your sidebar. Options include your blog and podcast feed, Twitter page, iTunes, Facebook Fan Page, Google Profiles
This plugin adds links after the posts for subscribing to the post author's posts feed via RSS.
Subscribe Here displays a visible plugin widget in the sidebar with Subscribe by Rss & Subscribe by Email(through Feedburner) options.
RSS link for this tag.