For businesses wondering how to measure ROI for online advertising, Marin Software has an idea. The company's cloud-based digital advertising management software, which it calls its Revenue Acquisition Management platform, lets marketers measure the effectiveness of campaigns, execute campaigns across publishers and channels, and use web analytics to optimize campaigns in real time. Its software works with ad publishers Baidu, Bing, Google, Facebook, and Yahoo! and integrates with enterprise applications. Marin Software sells its software directly to advertisers and through ad agencies; it earns revenue based on the amount of ad spend customers manage. The company was formed in 2006 and filed to go public in 2013.