Reputedly, the webserver G-WAN offers you 2x the speed of nginx for delivering static files.
Case Commons and the Casebook team is proud to announce (an early version of) ActiveTable. In the spirit of ActiveHash, ActiveTable lets you store enumeration-style data in your source code and access it with an ActiveRecord-like interface. ActiveTable, however, uses temporary tables to store the data in each database connection, allowing you to use it in SQL queries and joins. Props go to Todd Persen for making it happen.