I found two more helpful sites for Cub Scouts.
If you are in the Cascade Pacific Council, here is a great site of segments that are available:
This is the site of Pack 503 here in Oregon. Kudos to Sean Ferriss for putting together such a great page!
I also found a really helpful PDF for the Hiking Belt Loop and pin:
This PDF is much more comprehensive than other pages for the new Hiking Belt Loop. It includes a checklist, safety rules, symbols, leave no trace and a first aid kit list. This is on the Maryland Pack 407 website and is created by Kevin Nelson. Thank you for such a useful document!