Harold,

I wonder whether there is merit is connecting PKM with the VRM movement see: http://cyber.law.harvard.edu/projectvrm/Main_Page and the principles of VRM.

Both are about personal agency.

I believe Jon Husband recently attended one of the first meet ups of http://hi-project.org/ in London which is very much along the principles of VRM. There are familiar advocates http://hi-project.org/champions/ . And you have also blogged previously about the fatal flaws in the walled garden (silo) approach of current enterprise social network implementations.

Regards, Philip.