Google Data APIs

Base Data API

Recipe Application   [source]

Recipe Application (PHP 4)   [source]

Sample demonstrating inserts/updates/deletes and querying items   [source]

Book Search Data API

Books Data API Browser   [source]

Calendar Data API

Client library example   [source]

Documents List Data API

Client library example   [source]

OCR demo   [source]

Health Data API

Client library example   [source]

Picasa Web Albums Data API

Client library example   [source]

YouTube Data API

YouTube Activity Viewer sample using the client library   [source]

Video Browser sample using the client library   [source]

Video App: read/write samples using the PHP client library   [source]

Other

Hybrid Protocol (OpenID + OAuth)   [source]

Google Data APIs

Health Data API

Health.jsp   [source]

OAuth Example - Google App Engine

OAuth Example   [source]

Google Data APIs

Documents List Data API

Google Documents Viewer (OAuth)   [source]

YouTube Data API

YouTube Search on App Engine   [source]

YouTube Upload on App Engine   [source]

Gdata enhanced version of the Chow-Down application on App Engine   [source]

Health Data API

Pedometer App for Android (OAuth)   [source]

App Engine demo   [source]

Mashups & Other

App Engine Calendar API + Contacts API Event Creator   [source]

Google Data APIs Feed Fetcher - App Engine   [source]

Google Visualization API

App Engine Samples

Static Table Example   [source]

Dynamic Table Example   [source]

Google Data APIs

Documents List Data API

DocList Manager   [source]

Google Data APIs

YouTube Data API

Video Browser sample using the JSON output format (JSON)

For additional JavaScript samples, see the Google Data APIs Samples page.

Geo/KML

Google Earth

Tour of the continents with New York Times placemarks

Tools

OAuth Playground   [source]

A tool for experimenting with the Google Data APIs and debugging your OAuth integration