[[http://arstechnica.com/information-technology/2012/11/how-team-obamas-tech-efficiency-left-romney-it-in-dust/|How Team Obama’s tech efficiency left Romney IT in dust | Ars Technica]]: Details budgets of Obama's campaign, open-source software used, etc. [[http://kylerush.net/blog/optimization-at-the-obama-campaign-ab-testing/|Optimization at the Obama campaign: A/B testing]]: A/B testing of various elements on teh Obama campaign Website, including the best fundraising form, selection of copy & photos, etc