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The Ubuntu and Debian EC2 images published on http://alestic.com allow you to send in a startup script using the EC2 user-data parameter when you run a new instance. This functionality is useful for automating the installation and configuration of software on EC2 instances.

The research by the information visualization community shows clearly that using a visual representation of data-sets enables faster analysis by the end users. Tulip, created by David AUBER, is a contribution of the area of information visualization, “ InfoViz ”. Even if the Tulip framework allows the visualization, the drawing and the edition of small graphs, all the parts of the framework have been built in order to be able to visualize graphs having more than 1.000.000 elements. Such a visualization system must draw and display huge graphs, allows the navigation through geometric operations as well as the extraction of subgraphs and the enhancement of the results obtained by filtering.

Many Ubuntu and Debian images for Amazon EC2 include a hook where scripts passed as user-data will be run as root on the first boot.

At Campus Explorer, we’ve been experimenting with an approach where the actual user-data is a very short script which downloads and runs other scripts. This idea is not new, but I have simplified the process by creating a small tool named runurl which adds a lot of flexibility and convenience when configuring new servers.

A silky, tactile browser-based ebook reader.

Monocle is an ebook reader. It works in modern web browsers, using standard technologies. It runs in desktop browsers and on mobile devices. It's awesome in Safari and Chrome (the browsers used on iPhone OS and Android devices), increasingly awesome in Firefox, and workable in more standards-fearing browsers like Microsoft's Internet Explorer.

SaTScan™ is a free software that analyzes spatial, temporal and space-time data using the spatial, temporal, or space-time scan statistics. It is designed for any of the following interrelated purposes:

* Perform geographical surveillance of disease, to detect spatial or space-time disease clusters, and to see if they are statistically significant.
* Test whether a disease is randomly distributed over space, over time or over space and time.
* Evaluate the statistical significance of disease cluster alarms.
* Perform repeated time-periodic disease surveillance for early detection of disease outbreaks.

The software may also be used for similar problems in other fields such as archaeology, astronomy, botany, criminology, ecology, economics, engineering, forestry, genetics, geography, geology, history, neurology or zoology.

Three20 is an Objective-C library for iPhone developers

reMail downloads all your email to your iPhone and searches it instantly.

reMail was recently acquired by Google, and we've decided open source the product:

iProcessing is an open programming framework to help people develop native iPhone applications using the Processing language. It is an integration of the Processing.js library and a Javascript application framework for iPhone. The iProcessing download consists of a set of example XCode projects that demonstrate many of the Basic Examples from the Processing web site (originally written by Casey Reas and Ben Fry unless otherwise stated) as well a number that demonstrate the use of various iPhone features such as multitouch, accelerometer, orientation, location, sound play/record, app state saving and so on.