The Costume Designers research what pirates used to wear. The Galley Cooks research what pirates used to eat. The Translators research how pirates used to speak. The Weapons Expert research what weapons pirates used.
Then only did we find how hard it is to find kiddie friendly pirate websites with a decent amount of information. So I used a few websites to create my own! The books are easy to read and would make great resources for a wide variety of activities: