document: Aggregators versus disintermediators : battling it out in the information superhighstreet Perhaps the future of large-scale content aggregators is now no longer in doubt but this was not the case 10 years ago , when many leading industry experts were much more pessimistic in their predictions . In the year that Dialog celebrates its thirtieth anniversary as the world 's oldest and largest professional online information service , it is appropriate to look back at these changing perceptions , the reasons for these changes , and why the experts got it wrong . We also look at the present day ; the value that large-scale content aggregators bring to the information supply chain ; and we discuss why users would choose to use aggregators as opposed to going directly to the publishers
doc_bio_tags: O O B O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B I I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B I I O O O O O O O O O O O O O O O O O O O
extractive_keyphrases: online information service information supply chain disintermediators
abstractive_keyphrases: large-scale content aggregators