BWToolkit is an Interface Builder plugin that contains commonly used UI elements and other objects designed to simplify Mac development. XCode 3

An excerpt of comments from the Olson timezone database show just how bizzare timezones can be 

Performs cartographic transformations and geodetic computations.
The Proj class can convert from geographic (longitude,latitude) to native map projection (x,y) coordinates and vice versa, or from one map projection coordinate system directly to another.
The Geod class can perform forward and inverse geodetic, or Great Circle, computations. The forward computation involves determining latitude, longitude and back azimuth of a terminus point given the latitude and longitude of an initial point, plus azimuth and distance. The inverse computation involves determining the forward and back azimuths and distance given the latitudes and longitudes of an initial and terminus point.

Visual index and categorization of books mentioned on Stack Overflow and Hacker News

The book "Clever Algorithms: Nature-Inspired Programming Recipes" by Jason Brownlee PhD describes 45 algorithms from the the field of Artificial Intelligence. All algorithm descriptions are complete and consistent to ensure that they are accessible, usable and understandable by a wide audience.

Tutorial will show you around the basic features of TextMate. This is a must for everyone who wants to use TextMate seriously.
"This Tutorial starts rather unusually with an insight of TextMates Extensibility and Bundle System and also will show off the built-in editing features. I find this “Understanding TextMate” Section is essential for every user."

In depth blog on modern low-level computer architecture. Clear writing and lots of diagrams. Stuff you should probably understand as computer science person yet likely don't.

A series of articles about techniques used to build GMail on the iphone and other rich mobile clients leveraging the emerging HTML5 standards

Some thought on writing native applications versus webapps.

pastebin site that allows you to store code snippets. Provide automatic syntax highlighting and version control. Iisn't restricted to just one file, can consist of multiple files. Might be ideal for code like greasemonkey scripts

pastebin site which allows you to save small code snippets. May be private or public. Provides search, tags and automatic syntax highlighting.

Software development Q&A site. Allows you to submit questions to the site, which may then be answered by any user. Covers all technologies. Provides a moderation system where each user has a numeric score indicating "reputation" Allows you to set up tags for topics of interest, topics which you don't wish to see. Clean,simple design. Excellent source for high-quality information, average expertise level significantly higher that sun java forums.

Enumerates a number of experimental javascript libraries which can be used to visualize data - most of which utilize the firefox-only canvas element

a book of magic spells and invocations. A Python tiddlywiki quick reference file

DesignGridLayout is a LayoutManager inspired by the use of canonical grids for user interface design. DesignGridLayout works with JDK 1.5 and later.

The YUI Library is a set of utilities and controls, written with JavaScript and CSS, for building richly interactive web applications using techniques such as DOM scripting, DHTML and AJAX

A set of plugins, behaviors and widgets, for building event-driven web applications using the bubble-up technique.

lightweight, self-contained logging panel which takes the place of alert() boxes for your AJAX and DHTML applications. It is unobtrusive, easy to use, and can stay in your code through deployment.

SQL capabilities

EMMA is an open-source toolkit for measuring and reporting Java code coverage. EMMA distinguishes itself from other tools by going after a unique feature combination: support for large-scale enterprise software development while keeping individual developer's work fast and iterative. Every developer on your team can now get code coverage for free and they can get it fast!

libEMF is a C/C++ library which provides a drawing toolkit based on ECMA-234. The general purpose of this library is to create vector graphics files on POSIX systems which can be imported into StarOffice/OpenOffice. The Enhanced MetaFile (EMF) is one of the two color vector graphics format which is "vectorially" understood by SO/OO.

Almost every application with GUI needs icons. And they better be sexy. And stylish. And consistent. And small. Here are few tips for programatically creating icons using Java 2D features

provides a common place for Swing developers to track inconsistencies in the Windows Look and Feel. Implements a supplamentary Windows Look & Feel that addresses a number of issues

totally free layout manager based around row/column concept