[PockyMePink]

iKnow.com is a decent source if you want to learn vocabulary. It's for any level, beginner to expert. (if it has already been mentioned, please ignore the sucky explaination about it below)

It's pretty good at helping you memorize the vocab, as well. It gives you the words to study, in kana, kanji, and romaji (plus the translation). It gradually tests you on them, using the kana, kanji, romaji, AND the translation (for example, it will give youthe kana and ask fro a defination, and later it will give you the definition and ask for the kanji)


And for informal Japanese, I'm not too sure, but if you don't already, watch a lot of Japanese shows. Also, I've always heard that you can download podcasts from iTunes (in the Japanese section) that are free. When I say podcast, obviously I don't mean they're going to be teaching you Japanese. They're going to be speaking it! There are childrens podcasts, for those beginning to learn. As well as sections for comedy and whatnot, for more advanced speakers.