My position is a mish-mash of so many different things that I think it's impossible to pin down to an accurate position title. We're inventing a new position but I can't even think what to call it! I'd love to know what others' positions are titled as (or ones that you've seen)!
These are a few I've grabbed from email signatures:
Senior User Experience Specialist
Web Communications Communicator
So, for the sake of discussion: what's YOUR position title?