I have a colleague who makes mind-map style notes, either on paper or via software. He doesn't try to capture everything that's said. Rather, he notes key ideas, and identifies/imposes structure to the conversation.

It can actually be informative to look over his shoulder as a meeting progresses, to see what loose ends are still dangling, and where people focus the most attention.

For myself, I've moved to markdown-style in my handwritten notes. It isn't as fluid as mind maps, but the bullet points and headings still bring out structure, and the number of sub-bullets under any given item can hint to me if I haven't understood how things are going at a fine enough or coarse enough level.