Thanks for your reply and thoughts.
GetPocket allows user accounts and an API https://getpocket.com/developer/ so I assume that it could be searched on demand like other sources like WSJ. I would be interested in my content in GetPocket that matches up with my Evernote pages. The context sources are on a button just below what you show in the graphic (perhaps only when selected) and includes a number of sources:
The Wall Street Journal
Nikkei Business Online, Technology Online, and Architecture