I've used phpmyadmin to manually access the SQL database behind my blog and add 2 pingbacks into my comments, as self-hosted blogs do not pick them all up. (e.g. Blogger pingbacks are not picked up.)
Is there an easier way? A plugin that will allow me to add them in from the dashboard? Or perhaps a way already built it to WP 3.1.1 to add a new "comment" as a pingback?