Last week I decided to rewrite the Twitter.com front-end on Google App Engine to incorporate modern front-end programming best practices, exceptional performance, and establish a solid platform for further development. TwitterFE.com is a fully-functional read-only clone of Twitter.com designed to make your web browser sing. I created the site as an example of web development best practices anyone can integrate into their web presence. The new web front-end on TwitterFE.com features localized templates, expressive markup, distinct URL structures, integrated site search, geo-distributed dynamic and static servers, and more available features than Twitter.com. In this post I will outline some of the changes I've applied to the Twitter front-end reproduction as they apply to general front-end web development.