Good skills Mr.Hippo,
Yes, thanks 'jlifeintl' - your dislike of my suggestion (J-list) has only heightened awareness of 'Tekoki' and spawned a horde of growth-stunted, hairy-handed, blind onanists.
Seriously though - I think J-List is OK. You can enter the under 18 section if you want, and they send very informative emails to their customers about life in Japan, learning Japanese, and all sorts of things. (as well as trying to sell you their latest products.)
To be honest, I haven't bought much from there, but I suggested it here as somewhere to buy Japanese stuff online - even if a lot of it is pop-culture type things.
So, sorry if I offended anyone else by mentioning this site.