Beginers

Programming for Kids and Newbies
Steps To Becoming A Front-End Web Developer
What Makes A Good Front End Engineer?
How to become expert in programming.

Math

Math For Programmers
Introduction to Algorithms (SMA 5503) (MIT)
Introduction to Data Structures and Algorithms - Richard Buckland

Books

Getting Real: The Book by 37signals
List of freely available programming books
Top JavaScript Books of All-Time
40+ Books For Professional Design & Development
The Best Web Development Books
25 Must-Read Books For Designers, Typography Lovers And Freelancers
Essential Books for User Interface Designers
Top 5 Must Have Programming Books for Drupal Developers

JavaScript

Douglas Crockford
Douglas Crockford: "The JavaScript Programming Language
Douglas Crockford: "Advanced JavaScript"
Douglas Crockford: "Theory of the DOM "
Douglas Crockford - Really, JavaScript?
YUI Theater (Yahoo)  #Videos
Javascript Resources
A re-introduction to JavaScript
Google JavaScript Style Guide
JavaScript: The World's Most Misunderstood Programming Language
Great Ways to Learn jQuery

iPhone Dev

Apps vs. the Web

Python

Introduction to Computer Science and Programming using Python (MIT)
Python for Non-Programmers

Ruby

How to become successful Rubyist.
Beginning Ruby: From Novice to Professional, Second Edition #Book

Ruby on Rails

Ruby on Rails Tutorial Learn Rails by Example

Videos

MIT OpenCourseWare
YUI Theater
Google Tech Talks
Google Developers
Carsonified Vimeo Channel
Railscasts
The Pragmatic Screencasts
Zendcasts
Css-Tricks
Peepcode
Showmedo
Themeforest Screencasts
Teach Me To Code
Jquery For Designers

Resources

The Essential List of JavaScript, jQuery, HTML & CSS Books to Make You a Better Web Developer
The Big List of JavaScript, CSS, and HTML Development Tools, Libraries, Projects, and Books

Blogs

Arabic

keepondev
cssbit

English

#Web Design

alistapart
tutsplus

#Javascript

ajaxian 

Stoyan Stefanov 
dailyjs
yuiblog