Jungle Scout - Amazon product research made easy.
Kissflow - Kissflow is a workflow tool & business process workflow management software to automate your workflow process. Rated #1 cloud workflow software in Google Apps Marketplace.
Inventory Spy - Spy how many products remain on any Amazon Product’s offer listing page.
Pipefy - Pipefy is a process management software that empowers anyone to create and automate efficient workflows on their own without code.
Egrow - Egrow is a free web-based tool specifically developed for Amazon sellers.
Process Street - Create beautiful rich process documents in a simple to follow checklist format. Fast, free and incredibly simple to use.