I have a long history with text editors and I have always been facinated with the different flavours of interfaces and capabilities. After working my way through ED and then VI Emacs was a bit of a revalation. I found myself idle for a few minutes this morning and thought I would do some editor maintenance and install haml-mode into my copy of Emacs. While surfing around I came across the Emacs Lisp Package Archive which made the installation a breeze and I then found myself installing all sorts of other additions that might be useful in the future.
ELPA installation instructions (copied from the ELPA site)
Paste the code into a scratch buffer, and then execute the code in the buffer. Once complete run the package-list-packages command. In the packages buffer ‘i’ marks an entry for installation and ‘x’ installs the marked packages.