This case study describes how MIVA used multivariate testing to optimize the landing page for its weather toolbar download campaign. They tested different page elements like the header, hero image, and messages about privacy to determine the highest converting page. The testing found that emphasizing benefits over features, simplifying the page, and including privacy seals increased conversions by 8% and doubled the number of toolbar installs for the same ad spend. The case study recommends that companies test their marketing assumptions and page elements to improve campaign performance and ROI.