I have liked using Mahara since way back in Alpha, both personally and recommending for clients. It provides a great option for those seeking an ePortfolio to work tightly with Moodle and also for those seeking to build a community of practice.
Packt publishing have kindly provided me with a copy of the new book Mahara ePortfolios Beginners Guide eBook by Richard Hand, Derrin Kent and Thomas W Bell. It looks to provide guidance on both of the key uses “Create your own ePortfolio and communities of interest within an educational or professional organization”. So apart from the z this looks interesting!
See on www.somerandomthoughts.com