So what do you want to achieve? What you explain doesn't sound like directed bookmarking, more like broad-sweeping archival; how does this differ from using Super Search?

Makeshifts last the longest.

Well, it is directed towards bookmarking. It will allow good sharing of bookmarks. Also supersearch can rest for while. I think that in bookmarking we will have selected nodes instead of all nodes and tagging mechanism would also bring nodes forward which may have otherwise hidden in supersearch for given keywords. Currently when I add the bookmark to personal nodelet it reloads the page, which is little load on server. There is no tag assigning or filtering mechanism with personal nodelet. Viewablity would be much higher with del.icio.us or similar system in the long run. PerlMONK.org etc would be a nice place also to implement such system and we can add additional feature when desired.