The Toodledo Go SDK by Aditya Mukerjee wraps the API to integrate productivity features into applications. It includes accounts, API, and tasks folders. As a service, Toodledo offers hotlist, due dates, reminders, priority, goals, and schedule components.
Listrak is an email marketing company solely focused on the ecommerce channel. By getting to know their clients in depth, reviewing clickstream data and transactional history, and plotting customers on a lifecycle grid, Listrak is focused on delivering two things, according to CEO Ross Kramer, "help our customers acquire more new customers, and sell more to existing customers." The Listrak SOAP API makes automation of managing email campaigns easier.