grammalvsu

I am looking for a notebook/research aid type of program that will match my working style. I've searched through tons but none quite cut it, including:

Wikipad
Onenote
EverNote
GoBinder
Treepad
Infomagic
InfoSelect
MyInfo

The main feature I want that none of the programs seem to have is:

It's annoying to me to have 100s of different notepads, and having to find the one you want for the type of information you are currently writing down/copying from a webpage. I would much rather have ONE main notepad that I could write to, but keep the material organized using mark-up tags. like so:

<stocks:apple>
apple's selling well blah blah
</stocks:apple>

<journal:susan>
susan is boring blah blah
</journal:susan>

A number of programs have tagging capabilities, but most are just for tagging an entire notepad/sheet, not just a certain paragraph. Onenote does allow you to do this, but not using mark-up language like above. Rather you have to select it, and then find the tag from a list that you already had to make. I want to be able to create the tag just on the spot by typing it, and underneath it's hierarchical category if I want (susan underneath journal for example). And then it'd be nice if the tag was then automatically listed in a sidebar under used tags, and I could just click on it to see all paragraphs marked with it.

Does anyone know any programs w this capability or am I dreaming?

thanks a lot.