Client Side + Server Side

• Google Web Toolkit provides tools to create and maintain complex JavaScript front-end applications in Java.
• Opa is a high-level language in which both the client and the server parts are implemented. The compiler then decides which parts run on the client (and are translated automatically to JavaScript) and which parts run on the server. The developer can tune those decisions with simple directives. (open source)
• Pyjamas is a tool and framework for developing Ajax applications and Rich Internet Applications in python.
• Tersus is a platform for the development of rich web applications by visually defining user interface, client side behavior and server side processing. (open source)

However languages like Ruby and Python are often paired with database servers other than MySQL (the M in LAMP). Below are example of other databases currently in wide use on the web. For instance some developers prefer a LAPR(Linux/Apache/PostgreSQL/Ruby on Rails) setup for development.