Estándar
Reverse Ajax | Prokata
Reverse Ajax | Prokata: «All of these are valid ways of the server updating the browser. Reverse Ajax describes a technique for using whichever of these is on offer and sending Javascript directly to the browser for it to execute.»
Estándar
Apache 2.x + Tomcat 4.x + Load Balancing (or Private JVMs)
Apache 2.x + Tomcat 4.x + Load Balancing (or Private JVMs): «Apache 2.x + Tomcat 4.x
+ Load Balancing (or Private JVMs)»