Dictionaries and Other Reference

• Japanese Dictionary and Kanji Lookup. Look up by sentence phrase is great.
• Kanji Lookup by Radical
• MultiRadical Kanji Lookup
• Large Radical Kanji Lookup

Lessons

• Japanese Drills at JPDrills
• Awesome JLPT Resources

Youtube and Media

• Japanese Songs with Eng Subs (YT Plist)
• Free Japanese Radio Stations

Online Communities

• JapanesePod Forum

Commercial