I'm just a newbie to posterous and don't know much about what can be done in here, so I'm going to try some functions and see how I can use this site effectively. For a starter, I'm going to introduce some sites I found very useful especially for language learners of English.
This ninja dictionary works really fast. It's so simple! I love that.
The unique function is that you can trace the words you've looked up on your history section. Cool, isn't it?
What about making a Tango-chou.
(mmm, I don't know how I can spellcheck this commenｔ page. It looks like the spellchecker on my computer ignores my command^^;...)