4Clojure is a resource to help fledgling clojurians learn the language through interactive problems.

An Objective-C library dependency manager

dependency management for iOS and OSX dev

you can create and initialize a new collection as an expression by using the "double-brace" syntax

Waffles seeks to be the world's most comprehensive collection of command-line tools for machine learning and data mining.

ActionBarSherlock is an extension of the compatibility library designed to facilitate the use of the action bar design pattern across all versions of Android with a single API.

insanely awesome concurrent programming in Python.

practical uses of generators for "systems programming".
generators as components in a data processing pipeline.
captures a lot of common systems problems, especially consumer-producer patterns.
multiplexing generators.
concurrent - threads. generator as a queue.
networking.
generators as co-routines: receivers or consumers.

Two years after the Airbus 330 plunged into the Atlantic Ocean, Air France 447's flight-data recorders finally turned up. The revelations from the pilot transcript paint a surprising picture of chaos in the cockpit, and confusion between the pilots that led to the crash.

JUST SOMEONE WHO EXPLAINS ANDROID CODE!

Web Debugging for Safari on iPhone, iPad and PhoneGap

Mulberry is a powerful, pluggable framework for creating mobile applications using familiar HTML5 technologies.

Here is a proposal for minimalist JavaScript classes, humbly offered.

SimpleCV is a Python interface to several powerful open source computer vision libraries in a single convenient package. With it, your software can have access to high level algorithms in feature detection, filtering, and pattern recognition in a unified framework. Forget about bit depths, file formats, color spaces, buffer management, eigenvalues, and matrix vs bitmap storage.

All 65k TCP ports, from 1 to 65535, are open on this web server. It is a useful network diagnostic tool to verify if your Internet Service Provider, or company, or home network is blocking outgoing connections to certain port numbers.

We make Hadoop easy,
instant, and affordable.
It's Hadoop for everyone.

mincemeat.py is a Python implementation of the MapReduce distributed computing framework.

Papilio is an open-source FPGA project intended for education, hobbyists, engineers, or anyone interested in learning Digital Electronics in a friendly community. It offers FPGA development boards and add-on application modules called "Wings", that makes a easy to learn platform for beginners, and powerful design and prototyping tool for engineers.

This project aims to provide a reusable pull to refresh widget for Android

SYNCABLE LIGHTWEIGHT EVENT EMITTING PERSISTENCE

a tagged pointer is a common example of a tagged union, where the primary type of data to be stored in the union is a pointer. Often, the tag in a tagged pointer will be "folded" into the data representing the pointer, taking advantage of one of the following properties of pointers:
Pointers to certain types of data will often be aligned to the size of the data (4 bytes, 8 bytes, etc.), which leaves a few bits of the pointer unused. As long as code that uses the pointer properly masks out these bits, the pointer can be tagged with extra information.
The virtual memory system in most modern operating systems reserves a block of logical memory around address 0 as unusable. This means that, for example, a pointer to 0 is never a valid pointer and can be used as a special null pointer value.

This page documents the time-complexity (aka "Big O" or "Big Oh") of various operations in current CPython.

many useful hints & tips for Android development

SQLite Database browser is a light GUI editor for SQLite databases, built on top of Qt. The main goal of the project is to allow non-technical users to create, modify and edit SQLite databases using a set of wizards and a spreadsheet-like interface.

Tame (or "TameJs") is an extension to JavaScript, written in JavaScript, that makes event programming easier to write, read, and edit. Tame is very easy to use in Node and other V8 projects.

welcome to the String.fromCharCode / chrW (same as String.fromCharCode in Vbscript) Generator!