Marc Ambinder has an outstanding article on the secrets of Obama’s success.   One such secret:

Scale / Force Of Numbers: No matter how you measure this election, the Obama campaign was able to do so much because it had so much. What ifs abound. What if they were limited to the federal match? What if they weren’t able to raise as much money? What if they didn’t spend more than $150 million on field? Can this possibly be replicated? Can the Democrats ever again have hundreds of paid staff in states like Ohio weeks before election day? Can they ever find two million active volunteers?