I found this very recent CNN news article on computer-mediated religious communication... online confessions. I though it was interesting since it is a domain where not much discussion on CMC is done, as opposed to in the workplace and education perhaps due to the sensitive nature of the topic. It provides an example of mediated identity as well since users post their confessions anonymously which prevents embarrassment and provides 'self protection' as we read in Chap 3 of Hiltz and Turoff's "Human Communication via Computer".

Here's the link if you want to read it: http://edition.cnn.com/2008/LIVING/wayoflife/03/13/online.confessions/