Check out these websites for GBCI free Continuing Education, CE classes. These classes allow LEED Green Associates and LEED APs to continue to advance their knowledge and skills, keeping them current, relevant, and at the forefront of their industries, as the marketplace rapidly evolves and demands more from building professionals. 
LEED GA & LEED AP’s Required CE hours are:
LEED Green Associates: 15 CE hours biennially (3 LEED-specific)
LEED APs: 30 CE hours biennially (6 LEED-specific)
https://www.usgbc.org/coursecatalog/coursecatalog.aspx
http://www.greenexamprep.com/resources/ce_search.php