Technically you are correct, in the sense that they do not crawl the web like Google or Bing do. But from a user perspective, they do provide a very useful serv

Technically you are correct, in the sense that they do not crawl the web like Google or Bing do. But from a user perspective, they do provide a very useful service of aggregation, discovery and comparison of structured data that is way more effective than using Google search queries, if you know the type of information you are looking for.