Instiki - Simple, yet powerful

Instiki is a neat Wiki clone. The installation & setup process is so simple, that it doesn't even take a minute to setup the Wiki after one downloads it. All one needs is Ruby 1.8.1 or greater. It's simple, yet powerful.

I got to know about this from Ruby on Rails site.


How it does it?
* Two step installation: embedded web server (WEBrick) makes for easy installation
* One screen configuration

Feature list?
Basic features:

* Revisions: Follow changes on any page from birth. Easily rollback to an earlier revision
* Authors: Each revision is associated with an author, so you can see who changed what
* RSS feeds: track recently revised pages from an RSS aggregator

Other features

* Regular expression search: Quickly find deep info
* Exporting: Transport the entire wiki as HTML or wiki markup in a zip
* Multiple webs: Create separate wikis with their own namespace
* Password-protected webs: Keep private things private
* Reference tracker: Find pages linking to the current one
* Speed: all pages in memory (Uses Madeleine for persistence)
* Markup choices: Textile (default / Red Cloth), Markdown (Blue Cloth), and RDoc
* Internationalization: supports wiki words in latin, greek, cyrillic, and armenian characters
* Color diffs: Track changes through revisions