MediaWiki - MediaWiki is a free software wiki package written in PHP, originally for use on Wikipedia.
Apache Tomcat - An open source software implementation of the Java Servlet and JavaServer Pages technologies
TiddlyWiki - a non-linear personal web notebook
nginx - A high performance free open source web server powering busiest sites on the Internet.
Confluence - Confluence is content collaboration software that changes how modern teams work
vCenter Server - IaaS platform for managing and deploying virtual machines