Imagine hypothetically today you are researching a router. You would look up youtube video reviews, look it up in amazon may be craigslist, checkout consumer reports etc. The next day if want those links you will either comb your browser history or go those sites you visited again. But with fetch all you have to do is type the name of the router and it will show the links in descending order of time you have spent on various websites associated with the router :) Imagine the time saved :D