It's been a while since I've updated with the latest Chinese links from Free Language. So here goes, in no particular order...

Mandarin Chinese Language Overview Page

Chinese Language Resources

Loads of Multilingual Links

ChinesePod.com Olympics Site with Free Mandarin Lessons, Interactive Map of Beijing, Written and Spoken Country Names
eduFire.com Blogs about Top 20 Language Bloggers on the Web
Anki Free Flash Card Software for Debian GNU Linux, Mac OS X and Windows Based on Spaced Repetition
Chinese-Course.com Free Mandarin Course with Flashcards/Sentence Manager and Chinese Character Explanations/Annotations
German-Flashcards.com Free German Flashcard Course with Dictionary and German Text Annotation
Quizlet.com Quizlet Vocabulary Trainer w/Flashcards, Games, Quizzes and Tests w/Multiple Choice, Fill in the Blank, Matching
MeGlobe.com Jabber-Powered, Web-Based Instant Messenger with Automatic Realtime Machine Translation in 14+ Languages
TheChineseReader.com The Chinese Reader Helps Learn to Read Mandarin with Free Chinese Character Text Annotation
Busuu.com Busuu Social Language Exchange Partner Community plus Multimedia Photo-Audio Lesson Archives and Video Chat Interface
Linkua.com Linkua Online Distance Language Learning with Live Video Tutors, One-on-One Lessons and Web Classes
TheLinguists.com The Linguists Independent Documentary Film (Movie) Explores Dangers to Record Dying Languages
Semanda.com Free Chinese Vocabulary Cards with Downloadable PDFs plus Multiple Choice Quizzes for Children (Kids)
ChinesePod.com Celebrates the 1,000 Free Mandarin Chinese Audio Lessons Milestone!
hskflashcards.com Free Download HSK Vocabulary Cards in PDF Format + Print New Practical Chinese Reader Text Flash Cards (NPCR)

Language Freeware for over 70 Languages

Byki Offers a Free Language Software Application for Learning 60+ Languages at Byki.com (Windows and Mac OS X)

Book on How to Learn Languages Faster and Better

Learn That Language Now! ebook with Quick, Easy and Efficient Method for Learning Any Foreign Language

Study Abroad

Directory List of International Foreign Language Schools and Language Study Abroad Programs

It's been a very long time since polyglot from Free Language has actually published a list of the latest updates to the site. At last, this happened last night. So here goes with a healthy chunk of Mandarin Chinese language-learning goodness...

Foreign Language Translation Extensions/Tools/Plugins/Add-Ons for the Firefox Web Browser
SurvivalPhrases.com Survival Phrases in Chinese, Korean, Japanese, French, Swedish, Arabic, Spanish and Vietnamese
FSI-Language-Courses.com US Foreign Service Institute Mandarin Chinese Free Audio Lessons Downloads
ExpertVillage.com Instructional Videos on Learning Foreign Languages
The Alternative Dictionary: Slang, Profanities, Insults and Vulgarisms from all the World
Learn Chinese on YouTube with Mandarin Videos from ActiveChinese
Learn Mandarin Chinese Videos on YouTube AskBenny Channel
A Pinyin.info Article on Most Difficult and Challenging Aspects of Learning Mandarin Chinese
Dickinson College's Language-Exchanges.org Mixxer Free Skype Language Exchange Community
Quick Translation Firefox Extension to Translate Single Words in 17+ Languages
United Nations Declares 2008 the International Year of Languages
nciku.com nciku Free Online Mandarin Chinese Handwriting Recognition, Conversations, Radical Dictionary
open.ac.uk OpenLearn LearningSpace Open University with Free Courses in Modern Languages
italki.com Free Skype VoIP and IM Language Partner Community
Download Free Open University Courses from MIT OpenCourseWare Foreign Languages and Literatures Department
About.com Distance Learning Free Online Language Courses
MyHappyPlanet.com My Happy Planet Private Social Language-Learning Community
List of Free Foreign Language Courses Online at Education-Portal.com
English Language Learning and Teaching Article on Wikipedia
A Torrent File for 500 Free Mandarin Chinese Audio Podcast Lessons from ChinesePod.com
BYKI.com Download Free Language Software for Learning 42 Languages!
MangoLanguages.com Mango Languages Free Online Language Courses, Audio, Web Software
Word2Word.com Website
LiveMocha.com Live Mocha Social Language Learning Course and Networking Website
Lingopass.com Free Global Language Exchange Community

For a complete list of updates including languages other than Mandarin Chinese, zoom over here.

Free Language has now got six people blogging on the Free Language Blogs.

There are quite a lots of varied resources there pertaining to many languages.

Have a look... there are many things regarding Chinese:

Blog entries tagged with "chinese".
Blog entries tagged with "mandarin".
Blog entries tagged with "mandarin chinese".