• Google Sites

From author's site:

Google Sites is powerful enough for a company intranet, yet simple enough for a family website. Share information with a few people, a whole organization, or the entire world.

- Create rich web pages easily
- Collect all your info in one place
- Control who can view and edit
- Single-click page creation
- No HTML required
- Customizable look and feel
- Settings for accessing and sharing information
- And it's free!