[ Thanks to Nobody for this link.
]
“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).”