Amazon Advertising (formerly AMS or Amazon Marketing Services) is a service that works in a similar way to pay-per-click ads on Google.
Amazon S3 or Amazon Simple Storage Service is a service offered by Amazon Web Services (AWS) that provides object storage through a web service interface.
Google AdSense is a program run by Google through which website publishers serve advertisements that are targeted to the site content and audience.
LiteSpeed Cache is an all-in-one site acceleration plugin for WordPress.
LiteSpeed is a high-scalability web server.