.Geomatics

A variety of resources for Surveying -- including Videos, a Glossary, and Apps.

A public domain map dataset available at 1:10m, 1:50m, and 1:110 million scales.

A crowd sourced map of the world which has grown to become one of the most detailed sources of local-scale map data available.

The Open Source Geospatial Foundation (OSGeo) is a not-for-profit organization whose mission is to foster global adoption of open geospatial technology.

Search U.S. government technical reports digitized or harvested by TRAIL

GITA's Learning Center provides a variety of webinar that you can sign up to watch.

The Urban and Regional Information Systems Association (URISA) is a nonprofit association that provides education and training -- some free, some not. Under LEARN, you can find publications, podcasts, and webnars.