Wikis and Dreamhost

Wikipedia is a great resouce that I use all of the time and a post on ArsTechnica got me thinking about uses for Wikis. I am thinking of recommending the use of one where I work. We are the MIS department for a County Government and shared resources, fixes and information may be useful if stored and maintained via a Wiki instead of a Lotus Notes Database.

What are your experieces using Wikis and what type of information do you use them for? Were they useful?

Following are some of the metioned Wiki software or services that they liked:

• Tidy Wiki
• Instiki
• Central Desktop
• PBWiki

Dreamhost

As a side note I hae seen a lot of people mention and use Dreamhost as their webhost. As I have taken a cursory look at it it looks... well.. for a lack of a better word... awesome. They do not however support ASP or JSP which are what I primarily work in. They have extensive support for PHP and MySQL. It looks like a good time to start picking up PHP.