Recommendation and Ranganathan - retread
I like this emphasis on the value of time. It calls to mind Ranganathan's injunction to save the time of the user. And although expressions like 'consumption management' or 'sorting out demand' may not be uppermost in our minds, it seems to me that they are very much in the spirit of the double injunction "every book its reader" and "every reader his or her book". As resources become more abundant and as time becomes scarcer we need better and better ways of making this match. And this includes finding better ways of aggregating and using intentional and contributed metadata alongside our professionally produced metadata.