wiki

Google Sites – Create Wiki style Websites

Google Sites is a wiki software for Google Apps that offers 10 GB of file storage – you can add file attachments to web pages or embed rich content from other Google applications like YouTube videos, Google Docs, Presentations, iGoogle gadgets and Picasa Photo slideshows.

A Portable Wiki for your USB Drive

Looking for a portable wiki software that you can carry around on a USB stick? Check out Tiddly Wiki – a wiki so small in size and requires no installation.