The trading bots visualized in the stock charts in this story aren't doing anything that could be construed to help the market. Unknown entities for unknown reasons are sending thousands of orders a second through the electronic stock exchanges with no intent to actually trade. Often, the buy or sell prices that they are offering are so far from the market price that there's no way they'd ever be part of a trade. The bots sketch out odd patterns with their orders, leaving patterns in the data that are largely invisible to market participants.

Hookbox is a Comet server and message queue that tightly integrates with your existing web application via web hooks and a REST interface.

JSonduit is a service that can turn practically anything on the web into a JSON feed that any website or mobile app can consume. A JSON conduit, if you will.

Feeds are created from one or more source URLs and a custom transform, written in JavaScript, that can manipulate the data before the feed is served.

JSonduit also provides a hosting service for web widgets so that any site can easily display JSonduit feeds. In fact, the recent/popular lists you see below are widgets served by the JSonduit service; all done in a couple of lines of JavaScript (go ahead, view the page source!).

noVNC is a VNC client implemented using HTML5 technologies, specifically Canvas and WebSocket (supports 'wss://' encryption).
For browsers that do not have builtin WebSocket support, the project includes web-socket-js, a WebSocket emulator using Adobe Flash .
In addition, as3crypto has been added to web-socket-js to implement WebSocket SSL/TLS encryption, i.e. the "wss://" URI scheme.

Database Sharding can be simply defined as a "shared-nothing" partitioning scheme for large databases across a number of servers, enabling new levels of database performance and scalability achievable. If you think of broken glass, you can get the concept of sharding - breaking your database down into smaller chunks called “shards” and spreading those across a number of distributed servers.

Offers information about the current moment, including the Moon's Phase, the Sign of the Zodiac the Moon is in, the Moon's Void-of-Course status, the closest apogee and perigee moments, eclipses and retrograde periods of personal planets.

The Apache Cassandra Project develops a highly scalable second-generation distributed database, bringing together Dynamo's fully distributed design and Bigtable's ColumnFamily-based data model.

Cloud computing promises a number of advantages for the deployment of data-intensive applications. Most prominently, these include reducing cost with a pay-as-you-go pricing model and (virtually) unlimited throughput by adding servers if the workload increases. At the Systems Group, ETH Zurich, we did an extensive end-to-end performance study to compare the major cloud offerings regarding their ability to fulfill these promises and their implied cost.

Quartz.NET is a full-featured, open source job scheduling system that can be used from smallest apps to large scale enterprise systems.

Quartz.NET is a port of very popular open source Java job scheduling framework, Quartz . This project owes very much to original Java project, it's father James House and the project contributors.

ejabberd is a Jabber/XMPP instant messaging server, licensed under GPLv2 (Free and Open Source), written in Erlang/OTP. Among other features, ejabberd is cross-platform, fault-tolerant, clusterable and modular.