Add Problem Solving with Algorithms and Data Structures. Since it is
written in python, I have added it twice.

This was suggested by Fabian Dablander on the Python community on
Facebook.

Added Adobe Flex2 programming book

Adding @hadoop-illuminated to the free book list.

scientific python resources

Django is a high-level Python Web framework, therefore, it should be
included as a subsection of `Python`.

Ref: https://www.djangoproject.com/

Put things from misc into appropriate postitions.
Put a few links into their correct sections, in my opinion.

New category: Theoretical OCmputer Science
(Put stuff about automata,formal languages,computability..etc into it)

Introduction to Statistical Thought by Michael Lavine

The Elements of Statistical Learning: Data Mining, Inference, and Prediction.  By Trevor Hastie, Robert Tibshirani, and Jerome Friedman

Information Theory, Inference, and Learning Algorithms

Added Coursera and Udacity to MOOC and computing-book.