##Fixing npm on Raspberry Pi
I can't promise this is the right way to do it but this fixed my issue not being able to install things via npm on my Raspberry Pi ...
source http://raspberryalphaomega.org.uk/2014/06/11/installing-and-using-node-js-on-raspberry-pi/
The error I was getting was:
npm ERR! Error: failed to fetch from registry: