Learning Chinese on The Web

I've been practicing my Chinese on the internet lately,  now that I have significantly more free time since I finished my semester at the university, and I found these great tools for all Zhongwen students. You might find them useful as well, so here they are:
最近我检查了我的中文了，因为我在大学学完我的学棋和最近不太忙。我对学中文非常用这些工具。我觉得这些工具很有用的。可能这些也可以帮你。

1. Nciku.com. The best Chinese-English dictionary on the web, you can even write characters with your mouse or touchpad to search for those nasty characters you don't know.
2. Livemocha.com. This place is great for practicing your Chinese. It's a social network for learning languages, and you can practice your Chinese with native speakers.
3. China Central TV. Thanks to my friend Quan for this page, it has really helped me understand better spoken Chinese. This TV station has some interesting videos for learning Chinese. Highly recommendable, here you can improve your comprehensive listening, while learning new words and expressions, by reviewing dialogs of common situations part by part.
4. "Remembering the Hanzi", by Heisig and Richardson. If you are one of those common students that can't remember the characters and those you learn you always forget in no time, this book helps you remember all those characters, using mnemonics to study the radicals.
5. Trainchinese.com. This page helps you learn new words through flashcards; great for enhancing your vocabulary.
6. Popupchinese.com. This webpage has tons of excersices for HSK tests.
7. melnyk.com. If you're looking for podcasts to improve your pronuntiation, Serge Melnyk has a very complete page of theme based podcasts.
   

You're always welcome to add another tool you find useful. See ya!