This Congressional Quarterly piece chalks up Hillary's New Hampshire win to the work and money of Emily's List. Emily's List is not named after some woman named Emily; it stands for "early money is like yeast."
It also reviews the role of the American Federation of Teachers (AFT) (The Nevada chapter of the NEA - "National Education Association" is now shamelessly suing to disenfranchise the voters of the Culinary Union that endorsed Obama) and the American Federation of State County and Municipal Employees (AFSCME) whose staff actions in Iowa caused the Executive Board to write a scathing letter. For more click here.
CQ also talks of the delegate race (as opposed to counting primary wins).