This website has a collection of videos that you can watch in order to practice your listening skills. Levels are from intermediate to expert, so you can try to challenge yourself with higher levels after finishing the intermediate ones.
Updated daily, on this page you can listen to the day's news in Japanese to practice your listening skills! In addition, you can first choose the speed that you'd like to hear the news spoken at (normal, slow, fast) to adapt to hearing spoken Japanese at various speeds.
This guide was created as a resource for those who want to learn Japanese grammar in a rational, intuitive way that makes sense in Japanese. The explanations are focused on how to make sense of the grammar not from English but from a Japanese point of view.
This website has many basic Japanese grammar lessons, which you can use to study on your own. Lessons are arranged in a textbook-like format for easy reference.
Visualizing Japanese Grammar is a website that uses animated flash videos to explain basic to intermediate Japanese grammar. This website is helpful to those who are studying without an instructor, but it may even be useful to those studying with an instructor, especially students who need more visual aids in their studies.
Resource website for grammar, kanji, vocabulary, and more! Based mainly off JLPT and Kanji Kentei levels, but also includes various textbooks' materials. Quizzes are available and you can make an account to track your progress.