I'm just trying out 1&1's WebsiteBuilder as they do a free 30 day trial, and they provide up to 25 websites (I think - I know it's more than one anyway).
Website Maker deluxe provides unlimited Website projects and multi-project-mode (you can publish your projects to different domains). 14 days free trial and 4.99 bucks per month including one domain.... Website Maker easy provides 20 websites and single-project-mode for 1.99 bucks per month with 12 days trial too...
The free version provides only one project.