Many information tasks on the web require users to make use of multiple websites, for both content as well as information processing or visualization features. Programmers have created "mashups," which customize or combine the functionality of multiple websites by extracting information from web pages or accessing web services APIs. Non-programmers lack the tools or skills create such customizations because of the programming obstacles involved. Marmite is a tool that empowers non-programmers to create functionality similar to those found in mashups.