Notification to Admin or Author upon new post
31671
Execute function when post is published
23326
New Post Notices are live network-wide
140211
Move post to different user
82043
Include "created" option for top user posts link
80261
notification for comments on Example Questions in Area51
123258
Visitors Contacting Authors
113416
Allow users to put their e-mail in posts?
21551
Can I get notification when event occur?
18543
How to display notice in admin panel on Plugin Activation?
70079
Notify users about edit suggestion on their own posts
22991
A way for "new users" to ask about their post specifically
120030
Add button to watch questions/get notified on edits, comments, etc
100593
Inform users of certain tags on the existence of a new SE-2.0 site and offer to automatically post the question there instead
52227
Privilege Notifications
119727
Notify users when they are mentioned (on meta)
87003
User and associated Post
155703
Notify commentator(s) when post edited