"One cool feature of del.icio.us is the ability to access your bookmark list through a REST-based API, and integrate this list into your own XML-aware application. In most cases, this involves writing application-level code to communicate with the del.icio.us REST API, send requests, and parse responses. However, if your application is a PHP application, you can reduce some of the work in this process if you use Services_Delicious, a package from the PHP Extension and Application Repository (PEAR)."
