WiFi Map - A crowdsourced list of routers and passwords
nginx - A high performance free open source web server powering busiest sites on the Internet.
WifiMapper - Find free WiFi anywhere in the world
AWS Elastic Load Balancing - Amazon ELB automatically distributes incoming application traffic across multiple Amazon EC2 instances in the cloud.
Instabridge - Crowdsourced free wifi (now on Android)
Google Cloud Load Balancing - Google Cloud Load Balancer enables users to scale their applications on Google Compute Engine.