Evernote can be addictive, especially if you also use it on your mobile devices. The cloud-based note-taking service can become even more useful if you partake of the add-on products from Evernote and third parties. Here are 10 products--hardware and software--that stand out.
I haven't tested this one, but I love the concept. A Livescribe Smartpen creates a "pencast" to allow you to "hear, see, and relive notes exactly as they were captured." What this means is that the pen transmits what you "draw" with it to a computer as a virtual drawing. The audio file syncs to what the note taker wrote. Naturally the file is saved to Evernote and can be shared with other people.