Self-paced GIS training on the web. Offers courses using ESRI products such as ArcGIS, ArcGIS Viewer for Flex, and ArcGIS Online to courses about working with LiDAR data, Python scripts, or building a geodatabase. Are you affiliated with K-State? If so, ESRI classes are free, check out the ESRI Virtual Campus for details
Videos on topics that aren't always taught in class, but are for really useful for class projects.