I made it because I couldn't find a developer to do a larger project I wanted to do based on the same principle.

So I paid a developer to do this and now he is my partner and we are building the project I wanted to do to begin with. It's quite profitable for a small tool.

It's based on the idea of contextual note taking which basically allow you to attach notes to all sorts of things like website, folders, files etc.

The contextual engine is part of my new project.