1/2 Building e-Business Series: 7 hours

US$585 for 1 year of course access. Publisher: Harvard Business Online

Harvard Business Online's three e-business courses focus on business strategy. The courses introduce e-- business models and the methods used to modify and choose among them; examine the Amazon.com strategy to discuss value in the Internet economy; and explore how Internet-based digital infrastructure affects business structures, alliances, and operating models.

Each course consists of five sections, which include video clips of e-business experts, case studies, PDF worksheets, and a 10-question quiz. Navigation is straightforward, with a detailed table of contents and progress tracking.

Rich, college-level content makes this series the deepest source of e-business information of the publishers reviewed here.