While its roots lie in search, today, Google wears many hats. From self-driving cars and wearable technology to social networking and mobile operating systems, there are few industries where the search and advertising giant has yet to make its presence felt. Lately, however, Google’s expansion has taken a noticeable tack in a more singular direction: e-commerce. With the outsized success Amazon and eBay have had building online marketplaces that seek to remove the barriers around buying and selling on the web, it was only a matter of time before Google decided to pull its chair up to the e-commerce table. On Wednesday, TechCrunch has learned via a tipster that Google has quietly been pursuing its marketplace ambitions under the auspices of a new platform that leverages its increasingly powerful cloud services to power live, real-time commerce.