Hi all,
I've been using dokuwiki to document an online teaching unit:
http://biosignals.berndporr.me.uk
It shows from first principles how to assemble a bio amp and then measure ECG, EMG and EEG (just in the making). I've chosen dokuwiki because it's easy to install and has quite nice plugins especially for youTube videos which are central to work.
I'm lecturer at the University of Glasgow and I do everything what's neuro-related from deep brain stimulation to neuronal modelling.
/Bernd