(1) The Syrian National Council (SNC). It's Syria's largest. It gets substantial Western and regional support. It's dominated by extremist elements. It favors violently ousting Assad. It's allied with US proxy Free Syrian Army (FSA) militants.
They're heavily armed, well funded, trained, and directed Washington proxies. They're fighting Obama's war against independent Syria. They want a pro-Western puppet regime replacing it. Thousands of casualties mount. Assad is wrongfully blamed for death squad crimes.
(2) National Coordination Bureau for the Forces of Democratic Change (NCB). It wants democratic governance replacing Assad. Its principles are "no violence, no sectarianism, no intervention."
(3) Syrian Democratic Platform. Ideologically it replicates NCB goals.
(4) Building the Syrian State (BSS). Its members include dissidents, apolitical elements, and pro-reform independents. It rejects armed struggle and seeks peaceful transformation.
(5) National Change Current (NCC). It supported the SNC, but wouldn't initially join it. It's allied with SNC fringe groups.
(6) The "loyal opposition." Since violence erupted last year, eight new political parties were formed. Some are allied with Assad. They comprise no real opposition.
(7) Syrian Sunni Islamism. It's the Syrian opposition's "single strongest force." Its members include the Muslim Brotherhood. Its Syrian branch was created in 1944. It lacks a significant internal organized base.