A collection of interesting links in no particular order.

Astrophotographers

-Sarah Wager

-Rogelio Bernal

-Lionel Majzik

-Lorenzo Comolli

-Emil Ivanov

-Dave Jurasevich

-Steve Richards

-Rob Gendler

Missions & Orgs

-The World At Night

-Keep The Skies Dark

-Earth Polychromatic Imaging Camera (EPIC)

APOD

-A Solar Prominence Eruption from SDO