Learning Arabic online

To me, Arabic is a language that's fun to learn. I've recently started learning it, and discovered many free resources online that teach Arabic to foreigners. Here are a few. I recommend Madinah Arabic, but that is just my personal preference. Other sites may suit your need better. I hope you enjoy it too!

Madinah Arabic
Comprehensive site that offers 2 free courses, Arabic Reading Course and Arabic Language Course. Arabic Reading Course aims to help you learn the Arabic script, before learning the language itself. It suits me best because I want to learn reading, writing, speaking and listening. Also native Arabic speakers said that it's much easier to learn conversational skills if I can read the script

Gulf Arabic
It teaches the Arabic dialect spoken by people in Gulf countries, i.e. UAE, Kuwait, Bahrain, Qatar, Saudi Arabia and the Southern part of Iraq. The whole website is in Roman (English) characters. Therefore, even if you don't want to learn Arabic script, you can still learn Arabic for casual conversation purposes

Islamopas
It focuses on letter recognition, with each lesson teaching you a few characters. The short lessons, may not teach you the most number of words, but ensure that you remember most of the words being taught

Arabic 2000
It is a commercial site that offers a full Arabic language curriculum online, at a price. It offers 1 free lesson, which is indeed quite long, starting with basic grammar