Google Dataset Search: https://toolbox.google.com/datasetsearch
Google Earth Engine: https://earthengine.google.com/
Earth Explorer: https://earthexplorer.usgs.gov/
US Census Bureau: https://factfinder.census.gov/faces/nav/jsf/pages/index.xhtml
TIGER Data: https://www.census.gov/geo/maps-data/data/tiger.html
PhenoCam Explorer: http://explore.phenocam.us/
ArcGIS Open Data Hub: https://hub.arcgis.com/pages/open-data
NOAA Sea Level Rise: https://coast.noaa.gov/digitalcoast/tools/slr.html
Global Forest Change 2000–2015 Data: http://earthenginepartners.appspot.com/science-2013-global-forest/download_v1.3.html
DMSP Nighttime Light Data: https://ngdc.noaa.gov/eog/dmsp/downloadV4composites.html
Global Gas Flaring Data: https://ngdc.noaa.gov/eog/interest/gas_flares_countries_shapefiles.html
European Commission Global Human Settlement: https://ghsl.jrc.ec.europa.eu/
Global Surface Water: https://global-surface-water.appspot.com/
NASA Socioeconomic Data: http://beta.sedac.ciesin.columbia.edu/data/sets/browse
Global Average Annual PM2.5: http://beta.sedac.ciesin.columbia.edu/data/set/sdei-global-annual-avg-pm2-5-2001-2010
General Data Resources: https://serc.carleton.edu/NAGTWorkshops/gis/data_resources.html
UNESCO World Heritage List: http://whc.unesco.org/en/list
Geocommons: http://geocommons.com/search.html
US National Topographic Information: https://nationalmap.gov/
DATA.GOV: https://catalog.data.gov/dataset/natural-resources
USDA NASS Agricultural Data: https://quickstats.nass.usda.gov/
National Agriculture Imagery Program (1 m resolution over the US): https://www.fsa.usda.gov/programs-and-services/aerial-photography/imagery-programs/naip-imagery/index
OpenStreetMap: https://www.openstreetmap.org/about
Association of American Geographers (AAG)
American Geophysical Union (AGU)
US International Association for Landscape Ecology (US-IALE)
Ecosystem Services Partnership (ESP)
American Planning Association (APA)
HigherEdJobs: https://www.higheredjobs.com/
ESRI Careers In GIS: https://www.esri.com/en-us/what-is-gis/careers
APA Job Seekers: https://www.planning.org/jobseekers/
ChronicleVitae: https://chroniclevitae.com/job_search/new