I've been looking for a "Personal Knowledge Base" for a while. There are plenty of "Personal Information Managers" like evernote or devonthink; places where you

I've been looking for a "Personal Knowledge Base" for a while. There are plenty of "Personal Information Managers" like evernote or devonthink; places where you can dump and tag your files. But it seems that not many have tried to create a piece of software that can act as your own davinci notebook.