Hakka is a variety of Chinese spoken in south eastern China, parts of Taiwan and in the New Territories of Hong Kong. There are also significant communities of Hakka speakers in such countries as the USA, French Guiana, Mauritius and the UK. The total number of Hakka speakers is roughly 40 million. The name of the language, 客家話 [客家话] - (hak7ga1wa3 or kèjiāhnuà in Mandarin) means 'guest language'.
The Hakka people have a long history of migration. Hakka history states that their ancestors originated from Shāndōng (山东) or Shānxī (山西) provinces in northern China. They began their first wave of migration between the 4th and 9th centuries, traveling from Hénán (河南) and the adjoining northern provinces into Ānhuī (安徽) and its vicinity.
A second wave of migration took place between the 9th and 12th centuries, when the Hakka migrated along the mountains and foothills of eastern Jiāngxī (江西) into south Jiāngxī and inland Fùjiàn (福建).
A final wave of migration took place between the 12th and 17th centuries, as Hakka moved into northeast Guăngdōng (广东) province. The Cantonese of Guăngdōng saw the Hakka as poor, uneducated and uncultured. The Hakka considered the Cantonese greedy, unrefined southerners.
Information about Hakka | Useful phrases in Hakka | Numbers in Hakka | Tower of Babel in Hakka
Information about the Hakka language and people (in English and Hakka)
http://en.wikipedia.org/wiki/Hakka_(linguistics)
http://www.hakkaonline.com
http://www.mhps.ttct.edu.tw/hakkafa/hakka.htm
http://www.hakka.gov.tw
Chinese Translation
of names and phrases
http://softidea.com/twhakkausa/hktlpa.html
Information about the Hakka language and people
http://www.asiawind.com/hakka/
Online Hakka lessons
http://www.chinalanguage.com/content/index.php?c=content&id=711
http://www.hakka.gov.tw/lp.asp?ctNode=408&CtUnit=173&BaseDSD=7&mp=233&ps=
http://guhy.csie.ntust.edu.tw/~hakka/
http://www.youtube.com/watch?v=23TQYaW1dpg
Omniglot Chinese
learn to read, write and pronounce Chinese characters
Online Hakka dictionaries
http://www.chinalanguage.com/dictionaries/hakka/
http://sii-tien.lomaji.com
華語廣播-客家話 (Radio in Hakka)
http://big5.cri.cn/gate/big5/gb.cri.cn/chinese_radio/kejia.htm
BCC (中國廣播電台) - online radio in Mandarin, Taiwanese and Hakka
http://www.bcc.com.tw
Taiwanese Hakka Association of the USA
http://www.softidea.com/twhakkausa/
Dungan, Cantonese, Gan, Hakka, Mandarin, Shanghainese, Taiwanese, Teochew, Xiang