Google Sites - Create Wiki style Websites Without Learning HTML
Google Sites, based on JotSpot wiki software, will be available any moment inside Google Apps - this new Google service lets you create and edit websites without learning HTML. The Google Sites home page is live already but not yet available from Google Apps dashboard.
Google Sites offers 10 GB of extra 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.
To use Google Sites, you must enable the "Next Generation" feature inside the Domain Settings tab of your Google Apps account and then open sites.google.com/a/mydomain.com
Here’s a video from the product manager of Google Sites explaining the individual features:
Websites created inside Google Sites can be private or you can publish them in the public domain so everyone else can edit your pages. And like other Wikis, Google Sites maintains a log of all changes made by users.
Here are some sample Google Sites websites created by Google - Personal Homepage, Company Intranet or this Sports Club site from Google University . For more information on Google Wikis, check out Google Apps site, their support page or a detailed review from Rafe Needleman. Thanks Rex.

Looks like only new Google Apps accounts will have Sites right away. The rest of us with existing accounts have to wait a few weeks for Google to turn the service on. With an existing gApps account (I have one Education account and one Standard account) you get an error message at sites.google.com/a/domain.com. Oh well.
I can’t registers in jotspot its say google acquired us will be back soon :(
Judi, maybe not perhaps. I already have a mail from Google on Sites being enabled in my free GApps account.
To actually start using google sites, you need to have an existing domain name. This is not true for some users of wikis who just want a hosted wiki solution. As I don’t have such a domain (neither do i want to use my organization’s domain, as there is a clause that the administrator of the domain may have access to it), i was not able to try out google sites. Still, the capabilities of google sites look promising and i hope i will be able to try it out soon.