Apache Hadoop

Apache Hadoop is an open source Java software framework for running data-intensive applications on large clusters of commodity hardware, allowing storage and retrieval of large distributed data sets.

Mojito

Mojito, is a free, open source JavaScript MVC framework for building high-performance, device-independent HTML5 applications running on both client and server.

Pipes

Pipes is a powerful composition tool to aggregate, manipulate, and mashup content from around the web.

Pure

A set of small, responsive CSS modules that you can use in every web project.

YSlow

YSlow is a Firefox add-on (integrated with the Firebug development tool) that analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages.

Yahoo Design Pattern Library

The Design Pattern Library shares user interface design patterns vetted by Yahoo with the web design and development community.

Yahoo Query Language

The YQL platform provides a single endpoint service that enables developers to query, filter, combine, execute and store data across Yahoo and beyond.

Yahoo User Interface (YUI) Library

YUI is a library of JavaScript utilities and controls for building richly interactive web applications using techniques such as DOM Scripting, DHTML, and Ajax.