The document introduces various types of e-content including open educational resources (OERs), reusable learning objects (RLOs), eBooks, online dictionaries, and encyclopedias. It provides examples of OERs like MIT OpenCourseware and OpenLearn which provide free educational content. RLOs are described as interactive online resources focused on a single learning objective. Examples of eBook sources include Project Gutenberg and online library collections. Overall the document serves to define and provide examples of different forms of digital educational content available online.