I just tried an idea -- linking MohioMap items (which are EverNotes in a graphic SourceURL: http://forums.thebrain.com/post/evernote-integration-3016769?pid=1281650950#post1281650950

I just tried an idea -- linking MohioMap items (which are EverNotes in a graphical display) to TB -- and it worked!  Each EN in MM has a unique URL, so it can be dragged and dropped into TB.  Then, the link when clicked goes to the MM display, which shows the other notes that are linked to it.

You can, of course, copy and drop individual EN URLs from EN, into TB, but that way does not have the advantage of the graphical display of other notes linked to it.

So, this way is a visual or graphical extension of TB in an easy way for individual items, and of course, they then become searchable in TB -- at least, the title of the note does.

I tried the similar thing with CardDeck, a new way to display Evernotes, but that didn't work, because the EN cards don't have unique URLs therein.

See:  http://lifehacker.com/mohiomap-creates-a-mind-map-to-browse-your-evernote-1508827115 
and
http://mindmappingsoftwareblog.com/carddesk-visual-organizer-for-evernote/