Qifa Nabki, international relations PhD at Harvard, Lebanon native, recommends Brian Ulrich, Arabic Media Shack, and Andrew Sullivan. Via one of those links I also found Iran in the Gulf.
Did you know that while there are 22,000 people studying Arabic at college level in the USA, there are only 300 studying Farsi (the chief language of Iran)? We are weak on Arab world experts in this country, but we are just stupid when it comes to Iran. Sigh.
Folks, if this is your first internet political uprising, remember: don't believe everything you read. Read widely from different sources. Mistrust anonymous sources. Don't let people you don't know take over your Twitter or Facebook or other social networks just to join a quiz/color your picture green/do some other thing that looks like solidarity. Maybe it's innocent; maybe it's a hacker/virus/trick; maybe it's some sort of obnoxious spying person trying to check up on you.
Also, take a deep breath and step away from the computer. You will learn all you need to know in fifteen minutes. More time than that is probably not useful. I know, easier said than done.