New to Board, Homeschooling Mom

Hi all, I am Susan and Ihave been a member of the Alabama Board for a few years now.  Ijust noticed that there was an education board.  I am new to homeschooling and was looking for pointer, resources, anything really!  I have 2 teen boys 15 & 16 years old, they are in the 9th and 11th grade.  I have found it hard to locate CHEAP books and online resources.  Any help would GREATLY APPRECIATED!

Hugs, Susan