what resources do you recommend for learning the following node.js, socket.io, redis mashup

Hi I am interested in building a realtime application. Can you give me some recommended screencasts, ebooks, blog posts for learning these technology (free or paid ones it doesn't matter). I prefer to use these technologies with PHP if it's even possible.

General

• Node.js Digs Dirt - about Data-Intensive Real-Time Applications

Node.js

• How do I get started with NodeJS

socket.io

• Embracing all with Socket.io
• Websockets everywhere with Socket.IO

Redis

• Must read tutorial
• Data types intro
• also command docs are very handy