Google developed a simple WYSISYG editor for web pages. You can find it and play with it at pages.google.com. You can use up to 100MB of space for your pages and uploaded files. Your site will have an address like http:// yourgmailusername.googlepages.com/myferret.
Update: "Google Page Creator has experienced extremely strong demand, and, as a result, we have temporarily limited the number of new signups as we increase capacity. " Like Google Analytics and Web Accelerator, Google Page Creator stopped creating new accounts due to heavy demand.