PUBLIC MARKS with tag asynchronous

A nice introduction to asynchronous multitasking in PHP using generators and coroutines.

A list of utilities on various operating systems to have a program run permanently, without the need for a "watchdog".

Gearman provides a generic application framework to farm out work to other machines or processes that are better suited to do the work. It allows you to do work in parallel, to load balance processing, and to call functions between languages. It can be used in a variety of applications, from high-availability web sites to the transport of database replication events. In other words, it is the nervous system for how distributed processing communicates. One type of asynchronous and worker solution I could use in the implementation of asynchronousity in Symfony's media plugin

Ajax isn’t a technology. It’s really several technologies, each flourishing in its own right, coming together in powerful new ways.

A very interesting synthesis about the new generation web application, relying about HTML/CSS, Javascript/DOM, and XML/HTTP. AJAX stands for "Asynchronous JavaScript and XML"