Often the best place to find values is looking at SOLD ebay listings and comparing those to the condition of what you own (also take sold listings with a grain of salt due to shipping and ebay fees, ebay sold values are often 10% or higher than normal market value imo)
In terms of finding out exactly what you have, I love the website Numista. It has a catalog of nearly everything coin related throughout history. You'll find your Panamanian coins there!
Last of all,