Social Computing Graduate Program

Adding to my post of yesterday where I quoted Karl Fisch's statement, "The top 10 jobs that will be in demand in 2010 didn't exist in 2004."

Today, I found this item from the University of Michigan's School of Information:

SI adds six new specializations to master's program

(Mar 2007) The University of Michigan School of Information is responding to fast-paced changes in the information professions by offering students six new specializations, including social computing, incentive-centered design, and community informatics.

They say "Social Computing specialists will be highly qualified to step into positions such as these: Online community manager; Product manager; Social network analyst; Community organizer; Management consultant; User experience analyst; e-Marketing associate; Web analyst". How many of these jobs existed in 2004?