I can go to the About Me section (http://forums.radioreference.com/members/jfhtm350.html) and can edit Biography, Location, Interests, Occupation, but there is no -pencil- link to edit my signature. How do I edit it?
Click on the "User CP" tab right above your post. You'll see many options on the left side of the page that loads up.
It's right above where it says Forums Administration