Plugin from WordPress.com for comment notification...available?

WordPress.com has a rather cool feature when you add comments. The two features are:

   [x] Notify me of follow-up comments via email.
   [x] Notify me of new posts via email.

Is this plugin available somewhere so that I can include it on my privately hosted blog?

Topic notifications comments plugins Wordpress

Category Web

1
answered at

http://wordpress.org/extend/plugins/gurken-subscribe-to-comments/

http://wordpress.org/extend/plugins/subscribe2/

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