I run a small business with just me and my wife and the nature of our business requires waiting a lot on email responses from others - clients, service providers etc. (like most businesses do). AIB helps me track which emails have been pending for responses, which are due, overdue, which need to be nudged, which need to be kicked. I can set due dates and track which conversations are on track and which need attention. All very easily, simply and without great overhead in terms of time and effort. It has its roots in the GTD philosophy and although I don't actively use GTD, its principles are useful and common sense based. If Inbox Zero is your thing (it is mine), then AIB is superb at triaging your inbox and slotting things away neatly as to-dos or "dones". Review collected by and hosted on G2.com.