The upgraded co-branded Amazon credit cards, issued by Chase, now boast new names, designs and, most importantly, benefits.

Amazon has a new "accelerator" program that's intended to add more exclusive brands to the site. As CNBC reports, the shopping giant is inviting outside companies to "join the Amazon family of brands.

(Note: Amazon Jobs Day took place on Aug. 2., after this article was published. The company told us that about 20,000 people applied–for a total of 50,000 open jobs. So if you or a loved one missed ...