Computer-mediated instruction is particularly well-suited to typical community college students because it offers an alternative to the time and place constraints of traditional classrooms. Key characteristics of computer-mediated learning are as follows: instructors and students are separated by distance; instruction is delivered via computer technologies; communication is interactive; and learning is done asynchronously. Computer-mediated distance learning allows students to practice and acquire the skills needed to compete in a technology-dependent knowledge society. Virtual classrooms allow higher levels of learner participation by allowing students to take the time required to give well-considered responses and by leaving permanent records of discussions to which students can refer. The following are some guidelines for practitioners designing computer-mediated learning environments for adult learners: (1) provide opportunities for learners to create scaffolds within which they can make sense of new information; (2) create a learning community that is based on a high degree of interaction and sense of cooperation; (3) ensure that any synchronous communication tools (for example, chat rooms) included within the computer-mediated learning system coincide with the content contained in particular assignments; (4) build feedback mechanisms into the course; (5) view the online instructor's role as that of a facilitator; and (6) provide adequate, accessible technical support. (Contains 12 references.) (MN)