There are hundreds of tutorials on the Internet for all different levels and topics of GIS needs. This guide suggests a number of GIS tutorials for various topics and software. Coursera offers several courses of note.
UH students, faculty, and researchers have unlimited access to Esri's self-paced e-learning catalog — online videos, training materials, and study plans. If you are new to ArcGIS, we highly recommend starting with some of the basic tutorials that introduce the ArcGIS line of products:
There are many online classes on a wide range of topics that are free to UH students, faculty and staff.
Managed by a team of GIS evangelists who are passionate about all aspects of GIS. Includes well-crafted geo-infographics, comprehensive guides, and exhaustive lists. The focus of GISGeography.com is in the following areas: Analysis, Career, Datasets, Mapping, Satellites, Software, US Maps, World Atlas.