> Only Endless.com, a shoes-and-handbags site launched in-house, and Small Parts are “powered by Amazon.com,” a status which means Amazon.com customers can use

> Only Endless.com, a shoes-and-handbags site launched in-house, and Small Parts are “powered by Amazon.com,” a status which means Amazon.com customers can use their accounts on those sites. I know at least Audible also has this functionality, so it's pretty safe to assume this isn't a comprehensive list or portrayal of Amazon's second party brands and sites.