This sounds like what I'd want my Memories pages to work like, actually, rather than the del.icio.us model-as-I-understand-it-but-may-be-wrong. Sort by Memories of My Stuff, vs. Other People's Stuff, arrange entries to suit myself...

Over on LJ, I did a "shared world fanfic" for a while, with people writing posts which I then Memoried and linked on my site -- and then off-site, as well, which was a lot more work, bleah. If I'd been able to sort those into interior-fic-chronological order... I think I'd have had an archivgasm.