Actionscript 3.0

• ActionScript 3.0
• ActionScript 3.0 Cheat Sheet
• ActionScript Primer

APIs

• How to design a Good API and why it Matters
• WolfRam Alpha API
• The little manual of API design
• Live Search API
• JavaScript for Acrobat API
• Google Maps API
• Twitgoo Developer API
• Newsgator REST API
• The Linux Kernel API
• JDBC 2.0 Standard Extension API
• The Facebook Platform
• BOSS API
• YQL API

ASP/.NET

• ASP security standards
• Introducing ASP
• ASP.NET page lifecycle
• ASP Cheat Sheet
• Authentication and Security Mechanisms in ASP.NET Web Applications
• ASP.NET using VB.NET

C/C++

• C++ Essentials
• A Design Rationale for C++/CLI
• More C++
• Optimizing software in C++
• Thinking in C++
• Functional Programming in C++
• Static Interfaces in C++
• Memory model for multithreaded C++
• C Only Books Not in PDF Format (Thanks to wgj)
  • The C Book
  • C Elements of Style (Available as PDF but separate chapters)
  • Numerical Recipes in C (Also separate chapters available in PDF)

CSS3

• Introduction to CSS3
• Fonts Spec Presentation
• CSS3 display:magic;
• CSS3 Cheatsheet

CMS/CMS’s API

• Drupal 6 API
• Joomla
• Wordpress Plugin API
• Wordpress Widgets

F#

• F# Cheat Sheet
• Language Overview
• F# Warmup

Groovy

• Programming with Groovy
• Real Life Groovy
• Agile Web Development with Groovy and Grails
• Groovy Metaprogramming

Java

• Java Generics
• Java Quick Reference
• Java Stack Inspection
• Java Coding Style
• Multithreaded Java
• Bytecode verification
• Java Primer

JavaScript

• JavaScript Cheat Sheet
• Reference Booklet
• JavaScript as a real programming language
• RDFa with JS
• jQuery
  • jQuery 1.2 cheatsheet
  • jQuery Selectors
  • JavaScript & jQuery
• mootools
  • Mootools basics
  • Mootools Essentials
• PrototypeJS
  • Developer Notes for PrototypeJS
  • Prototype Cheat Sheet
  • JS and AJAX with Prototypejs

Lisp

• Basic Lisp
• Lisp 1.5 Manual
• The Complete idiot’s guide to Lisp packages
• Using Lisp as a markup language

MySQL

• Cheat Sheet
• MySQL on Windows
• Hackproofing MySQL

Objective-C

• Objective-C 2.0
• From C++ to Objective-C
• Obj-C internals
• For Java Programmers

Objective-J

• Objective-J book

Oracle SQL

• Oracle SQL tutorial
• Introduction to SQL injection attacks
• Key Functions

PHP

• The Manual
• Secure File Uploading
• PHP PCRE Cheat Sheet
• Oracle & PHP
• PHP & AJAX
• Developer Best Practices with PHP
• PHP Security Guide
• PHP Extensions Writing
• Frameworks
  • Symfony
  • CakePHP
  • CodeIgniter
  • Zend Framework
  • Prado

REST

• RESTful Web Services
• oAuth and REST
• RESTful services with JavaFX
• Using Amazon WS with REST
• REST for Web Services
• Describe RESTful Services with WSDL 2.0
• How to define REST Web Services

Ruby

• Ruby Language Expressions
• Programming Ruby Secong Edition
• Ruby Programming
• Intro to Ruby on Rails
• Ruby on Rails Cheat Sheet
• Guide to Ruby (poignat)

Scala

• Scala Tutorial
• Scala Overview
• Codemash

SQLite

• Functions Aggregators and Collations
• Setup on Windows
• SQLite Information

Tcl/Tk

• Manual
• Scripting Graphical Commands

YAML

• YAML Spec
• Ruby and YAML

This post will be updated regurarely with new books and sections.