Online Mandarin lessons
http://www.csulb.edu/~txie/ccol/content.htm
http://www.chineseon.net
http://www.csulb.edu/~txie/online.htm
http://www.languageguide.org/mandarin/
http://www.chinawestexchange.com/Mandarin/
http://www.chinese-outpost.com/language/
http://learnchinese.elanguageschool.net
A guide to the writing of Mandarin Chinese in romanization
http://www.pinyin.info
Online Chinese Tools
http://www.mandarintools.com
Online Chinese dictionaries
http://www.yourdictionary.com/languages/sinotibe.html
http://www.mdbg.net/chindict/chindict.php
http://www.mandarintools.com/chardict.html
http://www.pristine.com.tw/resources/lexicon.php
http://zhongwen.com
http://www.tigernt.com/dict.shtml
http://www.dictionaryhk.com
http://www.chinese-tools.com/tools/dictionary.html
http://www.chinesedic.com
http://www.chinese-dictionary.org
http://www.esaurus.org
http://www.kanjinetworks.com
Online radio and news in Mandarin
http://www.cri.com.cn
http://fm974.tom.com
http://www.radioshanghai.com
http://www.cbs.org.tw
http://www.bcc.com.tw
http://www.vot.com.tw http://www.bbc.co.uk/mandarin/
http://www.rfa.org/mandarin/
Glossika Chinese dialects - an introduction to all major varieties of Chinese and to many dialects and sub-dialects
http://www.glossika.com/en/dict/
