I was just sharing this thought with my pal Dinesh - I wish to share here:
"tag" is to the "future" as what "hyperlink" is to today
hyperlink : today = tag : future
of course: search is inevitable as content grows, i am visualizing search as "automizing organization" than "folders" doing "manaul organization"
Computers are becoming more close to humans: However disorganized we are, the more lazy we are to get organized - ex: we leave our things here and there and "search" for it - now we are organizing information into a choatic space and then "search".... tags minimize the effort of that "search" requiring intelligence...
Cheers!