How the Internet Works

http://manuals.makeuseof.com.s3.amazonaws.com/MakeUseOf.com_-_How_The_Internet_Works.pdf

Good high level, quick overview of what makes up the Internet.

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Intro to Python for Beginners by Lionel Tan Yoke Liang

http://lionel.chimou.com/python_for_beginners/

To Demonstrate some of the things that can be accomplished using Python.
To make everyone capable of writing their own scripts in easing their daily work task.
To guide everyone to become a great learner thru self learning.

It has lots of good examples.

Starting HTML Beginners Course Covering the Basics of HTML

http://www.build-your-website.co.uk/starting-html.htm

This course is for beginners starting to learn HTML and who have never written any HTML before and want to learn the basics of HTML.
This course consists of 5 short lessons containing exercises which I recommend that you do on your own computer. Is is designed to teach you all the HTML you need for making basic web pages and more even more importantly for editing and other HTML web pages.