Google AjaxAPI'sPlayground

Google API's are the one which will be very handy when desiging some applications . Google's interactive AJAX API Playground gives developers an easy to use interface to write some basic Javascript code for Google's eight Javascript APIs (Maps, Search, Feeds, Calendar, Visualization, Language, Blogger, Libraries, and Earth).

The API Playground will also become Google's official way to show Javascript samples.
You can currently try out and manipulate over 170 code samples in the Playground, ranging from simple tables, to motion charts based on Google spreadsheets, slideshows based on Media RSS feeds, and various ways of manipulating KML files for Google Earth.

Google AjaxapiPlayground