Moodle Hosting Services

Eduhost.org - a service from OETC (Organization for Educational Technology and Curriculum)  Note: The school or district must be an OETC member to use the hosting services.  OETC provides educational discounts for software licensing and purchases- among other services.

Alphaone-tech.com - Low-cost moodle hosting.  Has great descriptions of Moodle features.