If you have more than 400,000 “points” as of today, you now have the ability to update information in the directory. While what you do is logged and I may modify what you’ve done, your changes will be visible immediately.
Look for a 
various places for the things that can be edited.
Sorry – no documenation on how it works. This is mostly a “fail safe” in case I become unable to maintain the directory. Don’t feel obligated to do the editing unless you want to. If you’re an employee of a radio company, I expect edits to be as neutral as possible.
I noticed that and will proceed with caution, but I certainly hope that you will be around for a long, long time.