Intel in the world of The Division helps to not only expand the story of the in-game universe, but to guide the player to places in the city.
Crashed Drones are crashed government vehicles carrying intel and surveillance from before their crashes.
The ECHOs, or Evidence Correlation Golographic Overlay system, creates a 3-dimensional image of a situation or crime scene using discovered and correlated data.
Incident Reports are writeups of various interactions between factions that expand the story and background of the game.
Missing Agent intel are reports on agents that have been lost in the field and are either assumed dead or are missing in action.
Phone recordings can be found throughout Manhattan on a variety of cellphones dropped during the evacuation.
Pages from the Survival Guidebook are strewn about Manhattan. These pages are from Warren Merchant's "New York Collapse: An Urban Catastrophe Survival Guide", and originate from April Kelleher's copy (which was given to her as a joke gift for her birthday by her husband Bill Kelleher.
These pieces of evidence are footage found from various victims or related parties.
These pieces of evidence show the results of the Green Poison outbreak.
These pieces of evidence detail Dr. Kandel's research into the virus.