Good idea - social bookmarks behind the firewall

Piers Young with a great idea:

What if, at the company you worked in, you had a system similar to del.icio.us, which bookmarked items of interest etc. And on that system, rather than having just "and 42 others" as the cue to who else found something interesting, you had "and 42 others(2 marketing, 3 HR, 7 IT Support, 30 other)". Any obvious cons to this?

I couldn't think of anything really bad about it - might be some resistance by people not wanting to share, but that's going to happen anyway.

It would be nice to have a more general application that allows ad-hoc definition of "groups" - ie the company social bookmark list would be one group, and you could belong to many others.

And I guess you could use del.icio.us right now for this if you use a unique not-likely-to-be-used-accidentally taq for your company/group bookmarks - something like zz90adj. Not very easy to remember, but what you want here is the posting action to automatically embed this tag into your delicious post.