Shizzle

Edd, an easy to use spoke length calculator for bicycle wheel builders

This tool is useful if you want to build your own bicycle wheel. It is written almost entirely in JavaScript with a small server-side component written in Python.

Overdrive delicious.com

A web application that makes use of the brand new implementation of the HTML5-offline storage specification in Apple’s Safari browser. It keeps a local cache of your delicious bookmarks which are, thanks to a SQL database embedded into the client-side, extremely fast to search. Although there is nothing Safari-specific in this application, Safari is the only browser that is currently supporting the standard.