Even though Google gets more than three times the amount of traffic, Yahoo Search continues to add some pretty innovative features that its main competitor doesn't have. In the past year and a half, Yahoo introduced Search Assist, thumbnail images and preview panes for Image Search. Yahoo even had the ability to search for Creative Commons licensed images before Google. Now, Yahoo Image Search is rolling out a travel image refiner in its search, which is definitely worth a look. When you type in a city in image search, Yahoo will suggest related points of interest to your search, giving you more contextual information about your destination. For example, if you type in an image search for San Francisco, you will see a box to the left side of the page that will include image results for various points of interest and popular destinations within San Francisco, such as the Golden Gate Bridge, Alcatraz or Fisherman's Wharf.