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.
Apache is a free and open-source cross-platform web server software.
Google Maps is a web mapping service. It offers satellite imagery, aerial photography, street maps, 360° interactive panoramic views of streets, real-time traffic conditions, and route planning for traveling by foot, car, bicycle and air, or public transportation.
Mailchimp is a marketing automation platform and email marketing service.
RequireJS is a JavaScript library and file loader which manages the dependencies between JavaScript files and in modular programming.
Varnish is a reverse caching proxy.