Code

The PayPal Buttons module for Drupal/Ubercart allows PayPal Buy Now or Subscription buttons to be displayed with or instead of the 'Add to Cart' button on product pages. These PayPal buttons redirect the customer immediately to PayPal for payment, bypassing the standard Ubercart checkout process. Order information (including the customer's address) are obtained from PayPal after the purchase is complete.

@ PayPal Buttons project page on drupal.org

DrupalSite is an ActionScript 3 library for interfacing with the Drupal content management system. DrupalSite provides an AS3 API for executing and retrieving data from a Drupal website using methods revealed to external applications by the Services module for Drupal. All data exchange is performed using AMF 3, the native AS3 message protocol, which requires the AMFPHP module for Drupal.

@ DrupalSite project on Google Code

The Unique Field module for Drupal adds the useful option to require that a given field have unique content. Without this module, Drupal does not prevent multiple content nodes from having the same title or same value within a given field. This module performs additional validation when a content node is created or updated, and prevents users from saving a node until the field is given a unique value.

@ Unique Field project page on drupal.org