www.busuu .com it's like italki

I'm surprised no one mentioned http://www.arabicpod.net I have been learning Arabic for the past year and have found ArabicPod the best resource for learning Arabic

http://arabic.speak7.com/ http://www.madinaharabic.com/ http://www.dilap.eu/ http://www.al-bab.com/arab/language/learn2.htm :)

http://www.youtube.com/results?search_query=learn+Arabic&aq=f

http://www.uz-translations.net/?category=arabic this website has many free resources for download, but you just need to register it also has many other resources for other languages like chinese and so on hope it helps