Professional Organizations
Association of Iron and Steel Technology https://www.aist.org/
The Minerals, Metals and Materials Society https://www.tms.org/
Steel Founders’ Society of America (SFSA) https://www.sfsa.org
American Foundry Society https://www.afsinc.org/
ASM International https://www.asminternational.org/
U.S. National Science Foundation https://www.nsf.gov/
Open-Access Journals & Papers & Courses
Global Open Access Infrastructure https://doaj.org/
Open Access Scholarly Articles https://arxiv.org/
MIT Open Course Ware https://ocw.mit.edu/
Open-Access Materials Science and Metallurgy
Materials Type, Composition, Properties https://www.matweb.com/
National Institute of Standards and Technology (NIST) Science Data Portal https://data.nist.gov/sdp/#/
Online Engineering and Calculations
WolframAlfa Online https://www.wolframalpha.com/