1 and 0

https://kidscodecs.com/a-binary-numbers-tutorial-with-1-and-0/

Binary Converter

http://www.rapidtables.com/convert/number/binary-converter.htm

A Tutorial on Binary Numbers

http://www.math.grin.edu/~rebelsky/Courses/152/97F/Readings/student-binary

Binary Numbers (Wikipedia)

https://en.wikipedia.org/wiki/Binary_number

ASCII Table

http://www.asciitable.com/

How to Build a Computer

https://kidscodecs.com/how-to-build-a-computer/

PC Part Picker

http://pcpartpicker.com/

PC Part Picker: Where We Started

http://pcpartpicker.com/p/10UbI

Tom’s Hardware Forums

http://www.tomshardware.com/forum/

Tom’s Hardware: Common Solution to No Boot/Post Problems

http://www.tomshardware.com/forum/261145-31-perform-steps-posting-post-boot-video-problems

Simon Haughton Talks about Kids, Python, and Computer Science

https://kidscodecs.com/an-interview-with-simon-haughton/

Simon Haughton’s Website

http://www.simonhaughton.co.uk/

A children’s guide to Python programming

http://www.simonhaughton.co.uk/python-programming-guide.html

Scratch 2.0 Resources

http://www.simonhaughton.co.uk/2013/02/scratch-20-resources-and-planning.html

How to Teach Outstanding Computing

http://www.simonhaughton.co.uk/how-to-teach-outstanding-computing.html

Happy Numbers

https://kidscodecs.com/happy-numbers/

Happy Numbers List

http://en.wikipedia.org/wiki/Happy_number

Happy Numbers for Teachers

http://www.articlesforeducators.com/article.asp?aid=1

7 and Happy Numbers

http://www.guardian.co.uk/science/grrlscientist/2012/feb/27/1
http://youtu.be/kC6YObu61_w

Why 4 is the Nemesis of Happy Numbers

http://io9.com/5934819/why-four-is-the-nemesis-of-happy-numbers

Happy Number

http://mathworld.wolfram.com/HappyNumber.html

How to Code Happy Numbers

http://rosettacode.org/wiki/Happy_numbers

Dr. Who and Happy Numbers (Hey, Why Not?)

http://tardis.wikia.com/wiki/Happy_prime

Claude Shannon

https://kidscodecs.com/claude-shannon/

Claude Shannon Biographies

http://www.technologyreview.com/featuredstory/401112/claude-shannon-reluctant-father-of-the-digital-age/
http://www.corp.att.com/attlabs/reputation/timeline/16shannon.html
http://www2.research.att.com/~njas/doc/shannonbio.html
http://en.wikipedia.org/wiki/Claude_Shannon
http://mediahistories.mit.edu/claudeshannon/about-claude/

Victor Shestakov

https://en.wikipedia.org/wiki/Victor_Shestakov

George Boole

http://en.wikipedia.org/wiki/George_Boole
http://en.wikipedia.org/wiki/Boolean_algebras_canonically_defined
http://en.wikipedia.org/wiki/Boolean_algebra

Claude Shannon: The Father of Information Theory (BBC 2012)

http://youtu.be/q_aRHDnslKk

Claude Shannon Juggling (CBC 1985)

http://youtu.be/sBHGzRxfeJY

Claude Shannon’s Theseus Mouse and Maze

http://cyberneticzoo.com/?p=2552
http://museum.mit.edu/150/20

Variables

https://kidscodecs.com/variables/

C

http://www.codingunit.com/c-tutorial-variables-and-constants
http://www.zentut.com/c-tutorial/c-variables/
http://tigcc.ticalc.org/doc/keywords.html

Lua

http://www.lua.org/pil/4.2.html (local variables)
http://www.lua.org/pil/1.2.html (global variables)
http://lua.gts-stolberg.de/en/Variablen.php
http://lua-users.org/wiki/ScopeTutorial
http://www.lua.org/pil/1.3.html (reserved words)

PHP

http://php.net/manual/en/language.variables.basics.php
http://php.net/manual/en/language.variables.php
http://www.w3schools.com/php/php_variables.asp
http://php.net/manual/en/reserved.php

Python

http://docs.python.org/3.3/tutorial/introduction.html
http://docs.python.org/3.3/tutorial/introduction.html#first-steps-towards-programming
http://docs.python.org/3.3/tutorial/classes.html#private-variables
http://docs.python.org/3/reference/lexical_analysis.html#keywords

Rails

http://www.tutorialspoint.com/ruby/ruby_variables.htm
http://www.wellho.net/mouth/2609_Scope-of-variables-important-to-Ruby-on-Rails.html
http://www.tutorialspoint.com/ruby/ruby_syntax.htm

Variables

http://www.cs.utah.edu/~germain/PPS/Topics/variables.html
https://en.wikipedia.org/wiki/Variable_%28computer_science%29

How to Name a Variable When it is both a Noun and a Verb

http://arstechnica.com/information-technology/2013/03/how-to-name-a-variable-when-the-word-is-both-a-noun-and-a-verb/

Python

https://kidscodecs.com/python/

Python Links

http://www.python.org/
http://www.python.org/doc/
http://en.wikipedia.org/wiki/Python_%28programming_language%29
https://groups.google.com/forum/#!forum/comp.lang.python
https://github.com/languages/Python/most_watched

What Makes Python So Awesome (Presentation)

https://ep2013.europython.eu/conference/talks/what-makes-python-so-awesome

A children’s guide to Python programming

http://www.simonhaughton.co.uk/python-programming-guide.html

Help Kids Code Python Links

https://kidscodecs.com/resources/programming/python/

Online Coding Schools

https://kidscodecs.com/online-coding-schools/

Codecademy

http://www.codecademy.com/

Code Lesson

http://codelesson.com/

Code School

http://www.codeschool.com/

Lynda.com

http://www.lynda.com
http://www.lynda.com/Developer-training-tutorials/50-0.html

W3 Schools

http://www.w3schools.com

The Next Web Academy

http://thenextweb.com/academy/

2Young2Code

http://www.2young2code.com/

EdSurge List of Course Vendors

https://www.edsurge.com/guide/teaching-kids-to-code#package-products

Help Kids Code List of Online Coding Schools

https://kidscodecs.com/resources/coding-schools/

Local Coding and Technology Groups

https://kidscodecs.com/local-coding-and-technology-groups/

Girls Who Code

http://www.girlswhocode.com/

CoderDojo

http://coderdojo.com/

Random Hacks of Kindness

http://www.rhok.org/
https://en.wikipedia.org/wiki/Random_Hacks_of_Kindness

THAT Camp

http://thatcamp.org/

Why I Teach Kids to Code (Rebecca Garcia)

http://geekgirlweb.com/2012/09/04/why-i-teach-kids-to-code/

Meetup (Hacking tag)

http://www.meetup.com/find/?offset=0&psize=64&currentpage=1&allMeetups=true&categories=&keywords=hacking&radius=Infinity

Geocaching and the Elusive 4.5lb Walleye

https://kidscodecs.com/geocaching-and-the-elusive-4-5lb-walleye/

GeoCaching.com vs OpenCaching.com

A mildly partisan retelling of the battle between Garmin and GeoCaching.com. Read the comments, too, if the topic interests you.
http://www.notaboutthenumbers.com/2011/12/05/opencaching-com-one-year-on/

Geocaching Sites

http://www.geocaching.com/
http://www.opencaching.eu
http://www.opencaching.com/en/
http://www.groundspeak.com/

About Geocaching

http://www.rei.com/learn/expert-advice/gps-geocaching.html
http://www.geocaching.com/guide/

Geocaching Apps

http://www.notaboutthenumbers.com/2012/09/03/top-5-iphone-apps-for-geocaching/
http://appadvice.com/appguides/show/geocaching-with-your-iphone
http://www.geocaching.com/live/default.aspx

The Elusive 4.5lb Walleye Geocache

http://blog.opencaching.us/2013/07/an-interview-with-stormgren-x-on-45lb.html

Tracking US Dollar Bills

http://www.wheresgeorge.com/
http://trackdollarbills.com/

REI Introduction to Geocaching Video

http://rei.liveclicker.com/v/3117/introduction-to-geocaching-video-gps-garmin-etrex-oregon/

How to Hide and Publish a Geocache

https://www.youtube.com/watch?v=buGXABLks48