- www.mandarintools.com, which includes a Chinese Character Flashcards java applet for learning Chinese characters.
- Web-based Chinese-English Dictionary
- Chinese Books Cyberstore (new internet Chinese bookstore)
- www.nciku.com (excellent character recognition system)
- www.mdbg.net (good translations)
- http://ctext.org/dictionary.pl?if=enctext.org (has Bopomofo)
- www.zdic.net
- http://dict.youdao.com/ (Youdao Cidian)
- http://www.pleco.com (for iPhone, iPad, iPod, and Android)
- www.cjkware.com (KEY System for students & teachers of Chinese)
- https://addons.mozilla.org/en-US/firefox/addon/perapera-kun-chinese-popup-tra/ (Perapera Chinese pop-up dictionary for Firefox)
- http://learningchineseonline.net/ (by Prof. Xie Tianwei at Cal. State Long Beach)
- http://zhongwen.com (various items of interest related to Chinese language learning)
- http://chinalinks.osu.edu/ (by Prof. Marjorie Chan at Ohio State, on Chinese linguistics)
- http://fsi-language-courses.org/Content.php (free U.S. State Department FSI print and audio materials for Mandarin, Cantonese, and many other languages)
