In 2011 online ad spending, the Democrats and Obama's reelection campaign outspent Republicans 2 to 1. And, despite being embroiled in a tough primary battle for the Republican presidential nomination, Mitt Romney's campaign spent just half the amount incumbent President Barack Obama did on online ads last year.

For more information and spending comparisons, see the following stories:
Obama Outspent Romney On Web Ads 2 to 1
Obama and DNC Spent $7 Million on Web Ads
Surprising Leaders in Super PAC Web Ad Spending Race
Convergence Analytics: Digital Measurement in Transition
This joint report by ClickZ and Efectyv Marketing seeks to identify how the evolution of digital analytics affects and challenges practitioners, vendors, and investors. Download it today!
Kate Kaye was Managing Editor at ClickZ News until October 2012. As a daily reporter and editor for the original news source, she covered beats including digital political campaigns and government regulation of the online ad industry. Kate is the author of Campaign '08: A Turning Point for Digital Media, the only book focused on the paid digital media efforts of the 2008 presidential campaigns. Kate created ClickZ's Politics & Advocacy section, and is the primary contributor to the one-of-a-kind section. She began reporting on the interactive ad industry in 1999 and has spoken at several events and in interviews for television, radio, print, and digital media outlets. You can follow Kate on Twitter at @LowbrowKate.
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