How to remove your Ning account
It’s amazing how NING makes it very easy to create an account (and point you to prices of their products), but apparently impossible to delete it.
Even on the forum removal questions are never followed by a simple link or instruction. Perhaps just try to contact them using: http://hc.ning.com/contact/cancel/index.php
Helpful Trick: Removing online data
Helpful Trick: Remove third-party logins
If you signed up for Ning using a third-party login such as Facebook or Twitter, you probably want to revoke all access from Ning. Click here to find out how.