Idea Notes

Here's an item for the wishlist.

What I need is a good way to put together notes on ideas and initial sources that I have regarding nascent research projects. It needs to be a notebook, whiteboard & citation manager, orgranised by topics.

This sort of tool would let me create everything from back-of-the-napkin sketches to literature reviews to full-blown research proposals. When a project moves into the real work and research, then other tools would be appropriate.

I havn't found a tool that lets me do this nicely yet, though I haven't done any real inquiries into this idea either.