Below is a number of links that have helped me setting up my Raspberry Pi
iWebKit – Great framework for developing web apps that look like native iPhone apps
Making Electricity Usage Graphs with the Current Cost device – Great for getting started with a CurrentCost device
Install node.js v0.8.2 – Nice simple instructions on how to install the latest version.
Node.js, MQTT and Websockets – Good tutorial getting started with web sockets
An MQTT/Websocket based Thermometer using the html5 meter tag – Good follow on to use for dynamic sites.