Google's multi-library javascript loading configuration wizard.

Source code for the AJAX playground

Some simple-to-embed web widgets from Google. Nothing you couldn't do before with Google's API's, but these are nicely packaged, nice looking out-of-the-box widgets.

Try out all the Google AJAX API's in this online "playground". You can edit the sample code and view the output all on this page.

Quoted: With a diverse collection of Ajax examples, javascripts, jQuery plugins, web2 codes and demos from around the web, Ajaxrain gives you the perfect start to web development

Sample application for getting Google Calendar public data in AJAX

Using client-side javascript to access Google data (including Calendar information)

Article on getting cross-site XMLHttpRequest working. Some hacks here - seems a bit fragile.

Laudible but difficult to acheive goal of building a trustable "zero-knowledge" pure javascript program. Current browsers just have some many ways to unintentially run code that isnt' "reviewable" by the user.

I think it's a fine idea to encrypt locally, and store only encrypted data. But I think in practice, the user ends up having to trust the entire system of components - including the server. He can't, after all, do a complete security review every time a new version of the javascript application is loaded from the server.

Quoted: A zero-knowlege web application knows nothing of its users and their data. This is a first definition of a new methodology.