Documentation for the Drupal 7 core XML-RPC api.
HowTos for Views 3 in Drupal 7.
Complete documentation for Views 3.x (Drupal 7) is provided as part of the Views module. Install the Advanced Help module to access the documentation.
This guide is based on the Advanced Help content, and is published on Drupal.org for better searching.
Documentation for the Drupal 7 core OpenID module.
The Resource Description Framework project is an ensemble of modules providing comprehensive RDF functionality and interoperability. In 2009, Stéphane "scor" Corlosquet and others published Produce and Consume Linked Data with Drupal! Which presents the approach for using Drupal (or any other CMS) as a Linked Data producer and consumer platform.
Documentation for the Drupal 7 core RDF module.