Yesterday I gave a quick presentation at Linkdex on authorship and "author rank". My allocation was to talk a bit about how we got here and how agencies are coping. Co-speakers included Kevin Gibbons, Sam Hailstone, Bas van den Beld and Kelvin Newman.
All other agency example were taken without permission, discussion or insight. :)
Linkdex took notes on all the presentations which you can find here.