You don't have to seek them out, these will be awarded to players as they play by the festive system. All we ask is that you share the communications with each other (Read their Info Bio sections).
These communications are an important part of understanding what HAS been and IS going on in the Core.
You can trade these items at the Festive Store for Festive points, but as pointed out they carry fragments of a communications so best to share them with the other captains before trading in, VIA THIS THREAD.
Working together you will complete the communications quicker and move on to the next stage quicker - but as always the choice is yours

Coops