This might be a couple years old but I just happened to stumble upon this feature last weekend. Google has always had shortcuts built into it’s search results for things like mathematical calculations (10! / 2 -12), definitions (define: boisterous ), and local weather results (weather 90210). With Subscribed Links, you can add your own custom functionality to specific searches like nutrition data for food items via CalorieLab.com or a list of the cheapest gas stations in your area by GasBuddy.
This is a neat customization that I’m surprised has n’t changed much since it was brought back nearly two years ago. Adding custom functionality to your searches is kind of like adding custom programs to your command line. My only complaint is they don’t behave like I expect them.
For example, the subscribed links are never near the top. They always seem to be mixed into other results. If I explicitly signed up for added functionality and I need to use a custom syntax like “gas prices 20906”, I expect the add-on to be the first result. The Weather Radar add-on is a bit too small and cramped to be of any real use. It also shows up four items down below Google’s default 5 day weather outlook which comes up on top.
I hope Google has plans to expand these search add-ons. I can only imagine there are heaps of companies that would like to provide an add-on that puts their products and services front and center in the crowded search results.