TerraSolid Training tutorials from Terrasolid
http://www.terrasolid.com/training/training_animations.php
Global Mapper tutorial
http://www.globalmapperforum.com/tutorial/
Sample Radar Imagery
http://download.intergraph.com/downloads/erdas-imagine-radar-example-data
Landsat Photo Archives
http://libra.developmentseed.org/
LiDAR Course
https://www.e-education.psu.edu/geog481/
Sample LiDAR Data
http://opentopo.sdsc.edu/gridsphere/gridsphere?cid
I’d also recommend checking out their blog as it contains some useful info. This one specifically links to open source LiDAR software. http://www.opentopography.org/index.php/blog/detail/tools_for_lidar_point_cloud_filtering_classification
ERDAS Tutorials
https://www.youtube.com/channel/UCK-8Ky7ZiohkOrHpe6EM1Lw
Recommendations of best LiDAR practices
http://eijournal.com/print/articles/lidar-best-practices
Open Source for Photo Mosaicking. Haven’t looked at it yet
http://www.uoguelph.ca/~hydrogeo/Whitebox/