Ms. MARY GREENBERGER (Parent): I think it is up to the parent to monitor their child if they're on MySpace or if they're on one of the other blogs.

NPR: School District to Police Students' Online Activities

Dr Suzanne Zeedyk, an academic at the University of Dundee specialising in parent-infant communication, admits that Mary Lily Walker's name is largely unknown.

BBC: Remembering Dundee's 'forgotten heroine'