Engineering

General
Nanohub Nanotechnology

Society Of Robots Basic Robotics

Let's Make Robots

MathCS.org Robotics

Youtube/nptelhrd [v] Engineering

eFluids Fluid Mechanics

Gizmology Various notes on mechanical systems & projects

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

Engineering student Various resources for mechanical engineering students

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

<p style="font-family:trebuchet ms,sans-serif;color:rgb(0,0,0)">The Scientist & Engineer's Guide to Digital Signal Processing

General F.E. Exam Prep Look for "Download FE exam specifications (PDF)

<p style="font-family:trebuchet ms,sans-serif;color:rgb(0,0,0)">Lessons In Electric Circuits A free series of textbooks

<p style="font-family:trebuchet ms,sans-serif;color:rgb(0,0,0)"><span style="font-family:arial,sans-serif">U.S Navy Electricity & Electronics Training Series  <span style="font-family:arial,sans-serif">(NEETS) Contains 24 modules, each covering a specific topic in the field of electricity and electronics.

<p style="font-family:trebuchet ms,sans-serif;color:rgb(0,0,0)">Curious Inventor Guides This page contains lots of good guides for some skills like soldering and random ones like how the PS2 controller communicates.

<p style="font-family:trebuchet ms,sans-serif;color:rgb(0,0,0)">Circuit Simulator Applet A neat Java applet that simulates multiple types of circuits and is customizable

<p style="font-family:trebuchet ms,sans-serif;color:rgb(0,0,0)">Basic Electronic Tutorials Very informative tutorials on digital + analog electronics

<p style="font-family:trebuchet ms,sans-serif"><span style="color:rgb(0,0,0)">Logicly A logic circuit simulator. It seems to require " PAYMENT" for full software. The trial/demo is pretty good by itself though

<p style="font-family:trebuchet ms,sans-serif">MyTutorialWorld Mechanical Engineering related Notes.

<p style="font-family:trebuchet ms,sans-serif">Maker Pro an active, open source platform for maker projects.

<p style="font-family:trebuchet ms,sans-serif">Electronics Point an extremely active electrical engineering online community that provides useful resources for Electrical Engineers.

<p style="font-family:trebuchet ms,sans-serif">EE Power a digital publication focused on the power electronics industry.

Engineering video lectures (playlists)
<p style="font-family:trebuchet ms,sans-serif;color:rgb(0,0,0)">Intro to Chem-E (Stanford)

<p style="font-family:trebuchet ms,sans-serif;color:rgb(0,0,0)">Electricity & Magnetism (MIT)

<p style="font-family:trebuchet ms,sans-serif;color:rgb(0,0,0)">Organic Chemistry (Yale)

<p style="font-family:trebuchet ms,sans-serif;color:rgb(0,0,0)">Thermodynamics & Kinetics (MIT)

<p style="font-family:trebuchet ms,sans-serif;color:rgb(0,0,0)">Mech-E: Heat & Mass Transfer (Indian university)

<p style="font-family:trebuchet ms,sans-serif;color:rgb(0,0,0)">Civil - Fluid Mechanics (Indian university)

<p style="font-family:trebuchet ms,sans-serif;color:rgb(0,0,0)">Solid State Chem (MIT)

<p style="font-family:trebuchet ms,sans-serif;color:rgb(0,0,0)">Chem-E: Process Dynamics & Controls (University of Michigan)

<p style="font-family:trebuchet ms,sans-serif;color:rgb(0,0,0)">Materials Science (Indian university)

<p style="font-family:trebuchet ms,sans-serif;color:rgb(0,0,0)">Introduction to Robotics (Stanford)

Tools / Reference / Exercises
<p style="font-family:trebuchet ms,sans-serif;color:rgb(0,0,0)">engineeringtoolbox.com Engineering Reference/Tools

<p style="font-family:trebuchet ms,sans-serif;color:rgb(0,0,0)">nrich.maths.org/stemnrich Engineering Challenge Problems

<p style="font-family:trebuchet ms,sans-serif;color:rgb(0,0,0)">grantkot.com/MPM/Liquid.html Fluid Simulator

<p style="font-family:trebuchet ms,sans-serif;color:rgb(0,0,0)">Engineering calculators various calculators dealing with problems in fluid dynamics, materials, design, etc.