Learn all the basics of Electricity and Magnetism

I used this source to help me get ideas for hard candy recipes, particularly older styles of hard candy like lollipops and barley sugar candy, so that I could try making some new types of candy. The author talks not only about the recipe, but about the crucial steps that you have to take to make the candy come out the way that you want it to. I did not see anything like this on most of the other recipes that I looked at. I would highly recommend this to someone who has cooked candy before. I would recommend having practice in the art of cooking candy before attempting any of these recipes.

All of the physics problems assigned in MIT's OCW 8.0.1 Physics courseware in this book, and I use it to learn more about how the world works. Great resource for highly motivated high school student and college students.

I use this source for everything related to my work, and when I am bored. It is literally the greatest source of free reliable information that is constantly kept current. Anyone who tells you that Wikipedia is unreliable, I challenge you to find one piece of false information on any of its pages.

Watching the Mountain biking videos gave me great ideas for berm design and jumps as well as trail style. A must see for adrenaline junkies

MTB Tips is now on youtube, a great source for any educational video. Tells you literally everything about how to mountain bike. It is the youtube version of Mountain Biking for dummies

One of the greatest educational source I have ever found.

Another great source of free knowledge at an easy reader learning level

Best place for free education at an acceptable learning level