This mostly applies to shared business notebooks. I want to be able to easily look at "my notes" -- the notes I created. It would be very similar to the search attribute "LastEditedBy:" but you could be implemented as "CreatedBy:" search attribute. "CreatedBy" is also similar to the "Author" attribute except it is populated by the web clipper, emailed content, scannable, photos, and so forth.
Filter on name in Created by string: the same way you can choose a tag and filter on it with a pull down menu, it would be nice to be able to do the same thing with the name in the "Created by Paul Davis and shared with 10 people"
Show a person's notes in their profile: You could show the titles of a person's recent notes in their profile.
Here's why I want this feature: We have one notebook for each software product we manage, perhaps 10 shared notebooks all together (so far). I am responsible for writing the specifications for new features for several of our products. Often I have meeting notes, whiteboard photos, and sometimes web clippings that I want to find. The programmers also write lots of notes about the features and they add notes to the my specs (changing the "LastEditedBy" attribute). We're new at this effort and our tagging is not very mature. Being able to filter on notes I created would allow me to eliminate digging through a lot of chaff. It would also let me easily find notes that don't have the author auto populated (pictures, web clippings, emailed content).
Also, as we push out the expectation that all working notes will be entered in Evernote to all contractors and members of our team, it would be nice to monitor success by looking at what notes people are creating.
These aren't killer features. For the most part, I just have to wade through some extra notes to find the ones I need. Generally I start all notes with a set of note links to related notes so I don't have to dig for them more than once. That said, I was dumbstruck that they weren't there. I can see the "Created By" attribute on my notes, but I can't search on them.
Add note links to related material to each of my notes (this is mostly what I do)
Add tags to indicate who created each note manually and use a tag search
Better general tagging practices would also solve this problem
Enter the author attribute for all content I collect with the web clipper, email submissions, scannable, etc. and use the author: search attribute.