It’s a fairly competitive field to break into without any prior experience, but definitely attainable. Online universities obviously aren’t constrained by location and can get alot of applicants.

Here is a great resource group of 350+ current and aspiring online teachers.

http://groups.yahoo.com/group/Online_Adjuncts/

Group description:

Practical resources for college instructors looking to begin or refine their online teaching opportunities. Where to look for positions, requirements for employment, writing CV’s, and Universities to work for or avoid.

Also a place for online college instructors to discuss universities, teaching techniques, curriculum development, accreditation, technology, and other issues relevant to online teaching and distance education.