
Konnichiwa, Yumiko desu. Today I would like to share a fun website about Japanese onomatopoeia. Japanese has a ton of onomatopoetic words and this website helps you understand the meanings and how to use them with the help of a lot of illustrations. It has no English translations, but you will enjoy it if you can read Hiragana at least.
http://dbms.ninjal.ac.jp/nknet/Onomatope/manga.html