The PoolMan library and JDBC2.0 Driver and DataSource provide a JMX-based, XML-configurable means of pooling and caching Java objects, as well as extensions for caching SQL queries and results across multiple databases.
iHailStorm Bulletin Board (aka Inca Forums) is a very fast, powerful, and a very user friendly message board written in php. Designed from the ground up to have powerful community support, iHS supports groups, usergroups, RPG stats, and much, much more.
MyRecords is an incredibly versitile web application to maintain SQL records in a professional manner. Designed for office use, with full search capabilities, easy administration, and tons of customization.
Stop Cyber Threats with VM-Series Next-Gen Firewall on Azure
Native application identity and user-based security for your Azure cloud
Gain integrated visibility across all traffic in a single pass. Deploy Palo Alto Networks VM-Series to determine application identity and content while automating security policy updates via rich APIs.
A mod_perl-based RPC API designed for ease of setup, ease of extension, and rapid development.
Using Presto, you can develop a robust, fully "web-2.0" web application in a day or two.
Oh and it scales.
Take that, Ruby on Rails.