From 2.008x on edX, by Prof. John Hart from MIT
https://www.edx.org/course/fundamenta...

00:00:00 - Introduction to Additive Manufacturing (AM)
00:10:46 - Importance and Implications of AM
00:28:34 - Overview of AM Processes
00:40:08 - Extrusion (FFF, FDM)
00:59:19 - Photopolymerization (SLA, DLP)
01:12:17 - Powder Bed Fusion (SLM, SLS)
01:33:18 - Emerging Process Technologies