National Press Photographers Association: ‏ @NPPA

NPPA Student Committee: ‏ @NPPAStudents

Daily Orange Visuals: ‏ @DO_Visuals

Newspace Center: ‏ @NewspacePhoto

Light Work: ‏ @LightWorkOrg

Once Magazine: ‏ @OnceMagazine

Getty Images Reportage: ‏ @GettyReportage

APhotoADay: ‏ @apadtweets

Panos Pictures: ‏ @panospictures

The Photo Brigade: ‏ @PhotoBrigade

SU Photo Brigade: ‏ @SUPhotoBrigade

American Photo: ‏ @AmericanPhoto

National Geographic: ‏ @NatGeoPhotos

StoryCorps: ‏ @StoryCorps

Alexia Foundation: ‏ @alexiafdn

The Fall Workshop: ‏ @thefallworkshop