I think there is other information about project failure out there, but you'll have to go digging for it in the journals. For example, here's one that I know about from last year that covers international development projects:
Ika, Lavagnon A. 2012. ‘Project management for development in Africa: Why projects are failing and what can be done about it.’ Project Management Journal, Vol 43, No 4, pp27-41.
As with all journal articles it's academic in tone, but I've summarised it for the lay person here: Why Projects Are Failing in Africa
and part 2 of that article is here