Java
Many people in the Apache Hadoop community have asked Yahoo! to publish the version of Apache Hadoop they test and deploy across their large Hadoop clusters. As a service to the Hadoop community, Yahoo is releasing the Yahoo! Distribution of Hadoop -- a source code distribution that is based entirely
web 2.0
Performance is critical to the success of any web site, and yet today's web applications push browsers to their limits with increasing amounts of rich content and heavy use of Ajax. In his new book Even Faster Web Sites: Performance Best Practices for Web Developers , Steve Souders, web
Hadoop
Facebook has the second largest installation of Hadoop (a software platform that lets one easily write and run applications that process vast amounts of data), Yahoo being the first. Learn how they do it and what are the challenges on DBMS2 blog, which is a blog for people who care
Paper
Yahoo has developed a new language called Pig Latin that fit in a sweet spot between high-level declarative querying in the spirit of SQL, and low-level, procedural programming `a la map-reduce and combines best of both worlds. The accompanying system, Pig, is fully implemented, and compiles Pig Latin into physical
Scalability
The Exceptional Performance group at Yahoo! has identified 14 best practices for making web pages faster. These best practices have proven to reduce response times of Yahoo! properties by 25-50%. They focus on the front-end, for example, why it's bad to use "@import" for including stylesheets
PHP
This presentation by Michael Radwin describes why Yahoo! had standardized on PHP going forward. It describes how after reviewing all the web technologies including their own internal ones, PHP was choosen. It shows that not only technical reasons , but also business and development processes were taken into account.