Some article about how rebel held areas are governed:
U.S. weapons reaching Syrian rebels: about Mark S. Ward, the State Department’s senior adviser on assistance to Syria, who coordinates nonlethal aid to rebels from southern Turkey. Ward’s team — working primarily out of hotel lobbies — has spent the past few months studying the demographics and dynamics of communities where extremists are making inroads. Targeted U.S. aid, he said, can be used to empower emerging local leaders who are moderate and to jump-start basic services while dimming the appeal of extremists.
See also The Delivery Man
How Syria's mould-breaking al-Nusra Front is winning hearts and minds. Guardian. 10 July 2013. About Al Nusra rule in Shadadi near Hassaka - a region rich in oil an grain.
Special Report: How Syria's Islamists govern with guile and guns Reuters, 20 June 2013
Aiding Opposition Civilian Authority in Syria; Small Wars Journal, 7 June 2013
Hassan Hassan, “All (Syrian) Politics Is Local,” ForeignPolicy.com, 20 December 2012
Karin Laub, “Syrian Rebels Struggle to Run Broke Town,” Associated Press, 17 December 2012.
Aleppo’s Winter of Discontent,” BBC News, 12 December 2012.
Ben Hubbard, “Syrian Rebels, Civilians Brace for Long Civil War,” Associated Press, 27 November 2012.
Kristin Chick, “In Rebel-Held Aleppo, Syrian Civilians Try to Impose Law Through Courts, Not Guns,” Christian Science Monitor, 3 November 2012.
Ilhan Tanir, “In the Land of the Free Syrian Army,” Sada, Carnegie Endowment for International Peace, 4 October 2012
The Manbij Experiment: Rebels Make a Go of Governing in Liberated City; Spiegel, 2 October 2012.
Anand Gopal, “Welcome to Free Syria,” Harper’s Magazine, August 2012.
Erika Solomon, “Aleppo Residents Have Mixed Reactions to Syria Rebels,” Reuters, 31 July 2012.
Jane Ferguson, “Inside Homs with the Free Syrian Army,” Al Jazeera, 8 February 2012.