Dio Synodinos explains and demoes HTML5 visualization tools and frameworks: CSS3, SVG, Canvas, WebGL, Raphaël, Processing.js, D3.js, Fabric.js, etc.
Sadek Drobi presents the architecture of the Play2 framework, a framework helping developers creating web applications in Java and Scala.
Guillaume Bort and Sadek Drobi introduce Play, a Java and Scala web development framework, insisting on its asynchronous reactive capabilities built on Iteratee IO.
Trotter Cashion introduces and demoes Chloe, a web server that handles real time data streaming between browsers and web applications written in any language and using any framework.
James Williams explains how to create and manage Ratpack (a micro Groovy web framework) applications, and dealing with authentication, persistence and interfacing Grails apps.
Yehuda Katz discusses techniques for keeping data out of the DOM based on the idea that retrieving such data from the DOM involves a performance penalty and may affect data integrity.
Phil Wills discusses why The Guardian has introduced the Content Web API, how it has influenced the architecture of the site and how they develop software and collaborate with partners.
Michael Snoyman presents Yesod, a web framework written in Haskell and containing a web server, templating, ORM, libraries (templating, gravatar, etc.).