Over 1000 full length Arabic songs to listen to at the 4arabs Music website- !1000 songs 1000!. You can copy them, too.
A great resource, but unfortunately, English translations are lacking. Twenty-five songs by Fayrouz, 13 by El-Funoun, and many others. Don't miss Diana Karazon- very up-to-date. 150 singers, songs mostly from Egypt, Lebanon, Palestine and Syria, but others from all over the Arab-speaking world.
If you are adventurous, try out the Free Match Maker! The E-Cards are worth a look. Other services, including Learn Arabic in 3 Hours.