https://podio.com/ https://podio.com/ is another useful tool for prototyping workflows with structured content objects. When I last used it, it had major limit

https://podio.com/ https://podio.com/ is another useful tool for prototyping workflows with structured content objects. When I last used it, it had major limitations -- poorly designed API, third party backup solutions, good luck maintaining anything complex. However as a tool to prototype an arbitrary business process it's pretty good.