Free Japanese Resources/Materials

This is a giant list of free Japanese resources (see link above for the list). Categories include:

“Best Bang for Your Buck” Books (these aren't free, but the rest of the list is)
Essential Resources (includes links to even more lists of free resources)
Beginners: Before You Start (Read these before you do anything else!)
Hiragana/Katakana
Grammar
Vocab
Kanji
Reading Practice (includes Japanese articles and stories for beginners that are similar to the Japanese graded reader series)
Audio/Listening Practice
Communicate