This plugin will modify the links on pingbacks (and trackbacks) to remove the
"external nofollow" for links to your own blog.
More info:
The "Follow Self Pings" plugin can be installed by following this steps:
- Unzip "follow-self-pings.zip" archive and put all files into your "plugins"
folder (/wp-content/plugins/) or create a sub directory into the
plugins folder (recommanded), like /wp-content/plugins/follow-self-pings/
- Activate the plugin