A bunch of websites for learning Japanese

A Japanese friend (her name is Itou) told me about the following website:

http://www.dicts.info/

http://www.jgram.org/index.php

http://www.guidetojapanese.org/

http://anki.ichi2.net/study

http://www.yookoso.com/index.php

http://www.dicts.info/2/

grammar:
http://www.jgram.org/ – Nice website that gathers grammar points and explanations for the 日本語能力試験 – VERY helpful
http://www.guidetojapanese.org/ – good written guide to many japanese grammar points

vocabulary:
http://www.ichi2.net/anki/ – a free program for learning vocabulary – there are many pre-made decks from other users at “wiki -› extra decks”, or one can make their own decks

else:
http://www.yookoso.com/