This is a WordPress plugin that allows registered users to choose to be notified of any new posts or comments on your blog. It will add a new personal option to their profile where they can choose: No notification, Notify of posts, Notify of comments, or Notify of posts and comments. It’s released under the GPL license, and if you have any improvements or bugs, let me know!

Installation:
Extract the wp-notify_members.php into the wp-content/plugins/ directory, and enable the plugin from the Plugins section in the admin area of your WordPress blog.

Changes:

0.2.2:

• Removed Some debug info that was PHP5 only.

0.2.1:

• Fixed some problems with the admin setting a user’s notification setting

0.2:

• There is a new options page
• You can choose to notify on edited posts
• You can choose to notify everyone (no matter their subscription)
• You can choose to notify everyone on a per post basis
• Added better comments

0.1.4:

• Now admin can see option when editing a user (no longer a “personal” option)

0.1.3:

• Fixed bug in comment link
• No longer sends to owner of POST that comment was made on (WordPress already does this)
• Took out a random print_r that was sending in the E-Mails

0.1.2:

• Removed usage of the ’self’ keyword (for PHP4 compatibility)
• No longer sends to owner of comment or post respectively (they know what they just posted)

0.1.1:

• Removed usage of the ’str_ireplace’ function (for PHP4 compatibility)

0.1:

• Original Version