What are the the top social media sites that would suit most business in the mena region?

I Agree with Ahmad on Facebook being the number one social media site but i would put Twitter as a close second in the region then linked in as third.
Google + still needs some time to be any close to those 3.

Facebook, Twitter and YouTube! Agree with Suraj, let's not forget the second most powerful "Search" engine in the world!

Don't forget Youtube...

Facebook followed by Twitter and Instagram.
Locals in the Middle East use Instagram a lot.

For business, Facebook than Linkedin

Facebook, Twitter, LinkedIn, Pinterest.

i think Facebook no 1 then LinkedIn and during one to two years Google+ will take good place in social media