I have now made good progress with Connotea, most of my complaints have proved to be 'operator error', and I have had good & encouraging communication with Ian Mulvaney, the project-lead.

I have also started using the 'competitor'-project, BibSonomy, together with Connotea.

The update details are in a new post on Connotea that Catherine has started, at http://library.duke.edu/blogs/libraryhacks/2008/05/13/connotea-another-look/.

Please go there for her response, and my update.