nginx - A high performance free open source web server powering busiest sites on the Internet.
BookWidgets - BookWidgets is an excellent application that let you create engaging exercises in minutes and easily share a varied variety of beautiful and fun activities with your classroom and others.
AWS Elastic Load Balancing - Amazon ELB automatically distributes incoming application traffic across multiple Amazon EC2 instances in the cloud.
Padlet - Visual boards for organizing anything.
Google Cloud Load Balancing - Google Cloud Load Balancer enables users to scale their applications on Google Compute Engine.
Quizlet - Quizlet allows you to review and create flashcards for a variety of subjects, such as math and reading.