Vim
Vim is a highly configurable text editor built to enable efficient text editing. It is an improved version of the vi editor distributed with most UNIX systems.
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Purpose: Text editor

The Vim Editor
Operating system: Windows, Linux, Mac e.a.
Price: Free Open Source “charity-ware”, ie you are encouraged to make a donation to orphans in Uganda
Development: Open Source, copyright Bram Moolenaar (bram@vim.org)
Links:
WordsWare blogposts:

GVim Editor - a graphical version.
Vim -the keyboard text editor.
Other related posts, tips and tutorials: