Google Docs
A powerful document creation platform. Supports features such as: realtime collaboration, offline document editing, inline document comments, search and full differential changelog. Free for personal use, costs for commercial
documentation free commercial
Hackpad
A lightweight, markdown based, document creation platform packed full of features such as: realtime collaboration, offline document reading (via dropbox), in documment comments, search / tagging and full diff'd changelog. Private workspaces free for the first 5 users, Public workspaces always free.
documentation free commercial
Monit
An open source utility for managing and monitoring processes, programs, files, directories and filesystems
linux osx open-source monitoring process-mgmt c
Supervisor
Supervisor can manage application processes. It can start and stop a group of processes, restart processes if any of them terminate (keep-alive), start multiple instances of the same process (process pooling), automatically manage PID files, and much more! Very useful if you need to manage multiple processes for your application.
linux osx open-source process-mgmt python