When browsing for materials on online learning the bulk will be found in the Library of Congress Subclass LB that covers "theory and practice of education."
To begin searching for books, use VCUL Search and select Books under Material Type on the results page. To look for discipline specific content, use the name of your discipline as a keyword or subject and also use relevant subject classifications like: distance learning, web-based instruction, or computer-assisted instruction.
For example, if you are a nursing instructor, use "nursing" as a search term and then apply a subject search =criteria for "distance education."