Amazon is reportedly planning to launch an advertising-supported tier of its Prime Video streaming service as the internet retail and streaming giant looks to further build its ad business and generate more revenue from entertainment. The discussions, which are in the early stages, have been going on over the past several weeks, the Wall Street Journal reported, and come in the wake of cost-cutting reviews across the company's businesses, resulting in tens of thousands of layoffs. Amazon announced it was eliminating 9,000 jobs on March 20, which were in addition to 18,000 layoffs the company had declared in January.