Arabic language learning materials are available from several vendors including Rosetta Stone, Penton Overseas, various bookstores and computer software vendors, etc. See Foreign Languages.
On-Line Resources include:
ABOUT.COM's Arabic Language
and Culture area (http://hebrew.about.com/homework/hebrew/cs/arabic/index.htm)
includes links to various resources related to Arabic language,
culture, geography, etc.
Language Quest (http://www.languagequest.com/)