Google Web APIs:Official site. Includes developer's kit, terms and conditions, and FAQ.
Building a J2EE Web Services Client Using WebSphere: Part 1 of a series for J2EE developers using WebSphere Studio Application Developer to access the Google Web Api. Focus is on setting up and generating Java proxy and data classes.
CapeScience: GoogleMail: Allows access to Google via e-mail. Built using the Web APIs. Requires CapeScience account for download.
CNet: Developers Dig in to Google's Toolbox: Stefanie Olsen's article: "Imagine retrieving up-to-the-second results for all of your Web searches, or personalizing a high-powered navigation system for your desktop."
Enterprise News: Google Continues Flirt with Web Developers: Ryan Naraine's article: "With eyes firmly fixed on winning the approval of the Web developer community, search technology favorite Google has launched a Web API service using the SOAP and WSDL standards."
Flash MX API: Tutorial on accessing the Google API with Macromedia Flash MX.
Google API Access for PHP: PHP class library designed to make accessing the Google API using PHP via SOAP
Google API client for ColdFusion: A ColdFusion CFX tag to access the Google web API.
Google search API and Gmail related tools and hacks: Collection of hacks and tools related to google search and google mail
Google Web API Example: Provides a platform independent and an easy-to-use C and C++ interface to the API. Includes sources and instructions for use.
Google2RSS: .NET framework based command-line tool that transforms a query using the Google Web API to RSS 0.91.
GoogleAPI JS Class: Code for a JavaScript class for Mozilla.
GoogleBox JS: Create a GoogleBox on your own site using JavaScript. Requires a developer license key.
How to Use the Google API in Movable Type: Features sample source code.
Live Code Examples for Google API: Offering examples for the Google web services API.
O'Reilly Network: Google Web API: Technical explanation and sample code in Java and Perl.
PyGoogle: Python wrapper for the Google Web API.
Quasimondo - Flash Based Google Widget: Sourcecode for a banner-sized flash file based on Flash and PHP that uses the Google API.
Radio UserLand: Using the Google API with Radio and Frontier: Overview and sample code.
Ruby/Google: Library aiming to make the API more accessible to Ruby programmers. Includes source code, demonstrations, and a copy of the API Reference.
SoapWare.Org: Google API: Links to implementations and applications.
The Google API Is a Two-Way Street: John Udel's article about the API's uses, how it fits in to the 'bigger picture' of Web services, and the importance of metadata.
WebReference.com: Google Web APIs: Tutorial on using the APIs with XML.
XML.com: Google's Gaffe: The author attempts to show that a Google API based on XML, HTTP and URIs can be simpler to use, more efficient, and more powerful.