Google Shopping
Google Shopping is a comparison-shopping service where product listings appear directly in Google search results and the Shopping tab, complete with image, price, and store name. Etsy syndicates many listings to Google Shopping, which means your products can be discovered by people searching on Google rather than on Etsy itself.
This matters because off-Etsy traffic expands your potential audience well beyond Etsy's own search. Listings with clear, keyword-rich titles and accurate categories tend to be matched to relevant Google queries, so your on-Etsy SEO work pays off here too.
Understanding which of your keywords have strong demand on the wider web, something eRank's keyword research can help illuminate, lets you write titles that perform both inside Etsy and across Google Shopping surfaces.