Has anyone heard of / does anyone use Google Catalogs?
Google Catalog search was first conceptualized in December, 2001 as a search function on the web only. This was a free Google service. Catalog search was a major digitization project for Google, as thousands of merchant catalogs were scanned and made accessible to the public.
Google ended this service on the web in January, 2009 stating: "Catalog Search hasn’t been as popular as some of our other products. So tomorrow, we’re bidding it a fond farewell and focusing our efforts to bring more and more types of offline information such as magazines, newspapers and of course, books, online".
On August 16, 2011 Google Catalogs was announced on Google's official blog, and was immediately available for download. Google created a quick video as an overview of the features of the product. On October 1, 2012, Google made Google Catalogs available on the web. Google plans on integrating it with Google Shopping.