EconWeb
This organization offers both micro and macro on-line principles
texts (they can be used as supplements or as complete texts). John
Gross is the director of the project, and along with a number of
others, he helped write the micro text. It is also available as
animated PowerPoint slides. The macro text was written
by Tim Yeager. Both texts offer on-line quizzes to aid
understanding. The cost to students is $5 (for a six-month period)
for either text, and for an additional $5, they can e-mail questions
about micro text to the staff. Site licenses are available.
http://www.econweb.com/
