If you have a lot of different notes in your Evernote notebooks, it may be interesting to see how they are all connected. I developed an app that can do just that - visualize your notes as a graph, show you the most important connecting concepts, how they relate to each other, and where you have gaps in your knowledge. It can be a very useful tool and I'd like to invite you to try it on http://www.infranodus.com (PM me for an invite, as it's a closed beta at the moment). Also, you can read more about how it works on our blog: http://noduslabs.com/cases/evernote-iphone-notes-text-network-graph/ Thank you!