I know many of you use KoreanClass101.com for listening but, KoreanClass101.com's materials will get better; especially, new series that are coming soon in July will prove my point. My methodology and lesson notes are unique and easy comprehensive.
Yes, finding good Korean books is important but, most books are same.
Listen and check out the new series lessons: Absolute Beginner Season 2 and Audio Blog Season 5.
I do really work on my lesson notes and materials. Absolute Beginner Season 2 would be really helpful for Korean beginners. I bet it!