Below you will find a collection of curated lectures on DTI basics and analysis tools. If you find other great lectures add them in the comments section.
Diffusion MRI - Basic Concepts and Applications (2011) - from Neuroinformatics Research Group at Washington University
"Diffusion Tensor Imaging is a cutting edge imaging technique that provides quantitive information with which to visualize and study connectivity and continuity of neural pathways in the central and peripheral nervous system in vivo." -Basser et al, 2000.
Diffusion-imaging.comgives a comprehensive overview of available software, analyzing methods and research possibilities. Providing background on the tools, methods and software to effectively analyze DTI data. Posts include step-by-step processing and tractography tutorials.