Here are some of my favorite free baby crochet hat patterns found online. Be sure and become a facebook fan or google follower of my site as I will be adding more patterns soon including some of my own.
CROCHET BABY HATS
the shell stitch beanie
chullito ear flap hat
The Art of Crochet on You Tube:
BABY BEANIE HAT - SINGLE CROCHET
LITTLE DARLING SHELL CAP