Society Of Robots Basic Robotics
Youtube/nptelhrd [v] Engineering
eFluids Fluid Mechanics
iCrank Various mechanical engineering design resources
Curious inventor Various guides on designing & metal working
Machinery's handbook[b] Must have for every engineer
Military machines Various manuals from the military (most likely US) on how to use, operate, etc. most weapons/systems/vehicles. Even has other educational material issued by the military here
Dr. James Calvert History & some Tutorials on Mechanical, Civil & Electrical
Bolts Big chart on all the different types of bolts & their uses
Equipment List of equipment & processes & how to use them/how they work
Robot Books best way to learn to make robots, tons of books on how to design for beginners, etc. fucking five star post man if you want to learn robotics
General F.E. Exam Prep Look for "Download FE exam specifications (PDF)
Lessons In Electric Circuits A free series of textbooks
U.S Navy Electricity & Electronics Training Series (NEETS) Contains 24 modules, each covering a specific topic in the field of electricity and electronics.
Curious Inventor Guides This page contains lots of good guides for some skills like soldering and random ones like how the PS2 controller communicates.
Circuit Simulator Applet A neat Java applet that simulates multiple types of circuits and is customizable
Basic Electronic Tutorials Very informative tutorials on digital + analog electronics
Logicly A logic circuit simulator. It seems to require "PAYMENT" for full software. The trial/demo is pretty good by itself though
MyTutorialWorld Mechanical Engineering related Notes.
Maker Pro an active, open source platform for maker projects.
Electronics Point an extremely active electrical engineering online community that provides useful resources for Electrical Engineers.
EE Power a digital publication focused on the power electronics industry.
Engineering video lectures (playlists)
Intro to Chem-E (Stanford)
Electricity & Magnetism (MIT)
Organic Chemistry (Yale)
Mech-E: Heat & Mass Transfer (Indian university)
Civil - Fluid Mechanics (Indian university)
Solid State Chem (MIT)
Chem-E: Process Dynamics & Controls (University of Michigan)
Materials Science (Indian university)
Tools / Reference / Exercises
engineeringtoolbox.com Engineering Reference/Tools
nrich.maths.org/stemnrich Engineering Challenge Problems
grantkot.com/MPM/Liquid.html Fluid Simulator
Engineering calculators various calculators dealing with problems in fluid dynamics, materials, design, etc.