Esri Mapping Center - Resource for cartographic concepts and techniques.
GIS Café - North American jobs, news, podcasts, products, T-shirts, GIS Weekly newsletter.
GIS Lounge -Well-organized gateway site
Society for Conservation GIS - International organization aimed at biologists and ecologists, includes job postings, conferences, listserv, and newsletter. Students welcome!
Illinois GIS Association – includes Illinois GIS news, job postings, meetings twice yearly.
Planet Geospatial - If you have time to read one GIS blog only, this is it!
Very Spatial – Entertaining and informative blog written by 3 grad students
Directions - up-to-date product reviews, how-to columns, job listings, and a monthly Profiles in GIS column aimed at “would be GISers”.
Café Press – Looking for GIS T-shirts, license plate holders?