What gave PA to Obama was the blocking by the courts of the Voter ID act that the legislature passed.
Note that in all the praise about individual contibutors in the article, there is no mention of "bundling" and the routine use of cutouts, both rather unsavory practices that both sides use.
EDIT: this site may prove a useful antidote to the above article: http://www.washingtonpost.com/wp-srv/special/politics/campai...
Romney raised more than Obama in total $$$. Even without the SuperPAC contributions that gave Romney more money, the two campaigns were within about 10% of each other in terms of what they raised.