My daughter is reading psychology at university as I did , some years ago now. My understanding is that little has yet been published on the psychological impact of the internet....but it would make a great thesis. I wonder if you are making your field too narrow by focussing on the Mudcat though? I would be tempted to look at on-line counselling services, ICQ etc. as well. Have you discussed this with your tutor? I would of course, be happy to help in anyway I can and might even ( if the brain doesn't fail me entirely) be able to dredge up links to other theories, research etc.I would need to know where you are coming from though....social, psych-social,cognitive, physiological, what??