An interesting article on how Howard McQueen runs a session to get organisations engaged in the persona creation process and embed their use in the development of intranets and portals.
Using persona advocates to develop user-centric intranets and portals - article by Howard McQueen
The article also includes a few potentially useful resources at the end. Some I was already aware of, but a couple I will need to return to - papers written by Microsoft staff on the use of personas in the development of their software products.
Personas: Practice and Theory (PDF download) - Research paper by John Pruitt and Jonathan Grudin (Microsoft)
Personas: Moving Beyond Role-Based Requirements Engineering (PDF download) - Research paper by Granville Miller (Microsoft) and Laurie Williams (North Carolina State University)