This is an interesting perspective for job title and role. I have always thought of web design from an design firm perspective, with designers, sr designers, art directors and such. Some of my co-workers have come from an agency background and have similar take on roles and title. Of cource we all add in the UI and IA roles. What has surprised me recently is this role of Web Producer. For a long time I was not sure what that was. Now I am (guessing to some extent) thinking this is an art or creative director - but with hands on? Seem driven from the video production house perspective.