Skritter : Learn Chinese and Japanese characters faster and retain them longer

I came upon Skritter, a cool website for learning how to WRITE and remember Chinese and Japanese characters, while searching for free online learning resources for Chinese. Watch the intro video here:

http://www.skritter.com/about

According to the site, Skritter allows you to

• Learn Chinese and Japanese: in your browser, no installation.
• Write your characters: use a mouse, writing tablet, or touchscreen.
• Track your progress using SRS (Spaced Repetition Learning System): so you review only what you need to review.
• Use textbook lists plus over 4200 simplified and traditional characters included.

You can sign up for a free 2-week trial for the Chinese site, after which you have to pay.

The Japanese site currently free, as it is still BETA.