SearchCIO.com published this short and simple article identifying 10 common ITIL "implementation" mistakes and how to fix them. Keyed on the understanding that an ITIL adoption is as much about organizational change as it is about process change, this is a worthwhile read. Read the article here.
10 Traits of Successful ITIL Adopters
Hank Marquis has written a very helpful article that anyone embarking on an ITIL/ITSM adoption effort should read.
While there are reams of information on the various technical elements of "implementing" ITIL, there is very little written about the pragmatic activities necessary to drive adoption within an organization. Hank's "10 Traits" are drawn from the experiences of those who have successfully driven an adoption effort - and they represent advice you will be well served to take. Read the article here.