I usually split the information on a topic in multiple notes. I then simply link the detailed information to a master note giving an overview of all the information on that topic. I also organise topics in a hierarchy similar to folders.
If I navigate through this information with the current link feature, I can go down very easily in the linked notes. But I cannot go up. Of course I could use the "Go back" button if I am coming from a note. But this is missing the point. There can be multiple "Up" linked notes, and I want to be able to access all of them easily, not only the one I came from.
The way around I have now, is to make at the top of the note an "Up links" section where I list the "Up" notes I want to be able to access easily from this point. This double linking is extremely painful, considering that Evernote has all the information to give this information automatically very easily.
A very easy feature to implement in Evernote would be to give the option to show all the notes linking to a specific note. This would save me a lot of time in the organisation of my data in Evernote. Most of my notes include many links to other notes. If I cannot find the master note linking all of them, it is much more difficult to find the information I am looking for. I don't think it would be difficult to implement, and it is not such an exotic feature that is user specific.
NB: Crusoe might be interesting, but I cannot test this Mac specific app. Also, we should not need a third party app to have such a basic feature.