Definitions of tutoring vary in scope. In a narrow sense tutoring refers to helping learnings with a given a learning task, in a wider sense it refers to all aspects of computer-mediated communication in which teachers, tutors, etc. engage.
In the context of e-learning, Seufert & Euler (2005) distinguish between e-tutoring, e-moderation and e-coaching. E-tutoring refers to helping students with exercises (in particular in the context of e-instruction, e-moderation refers to organizing on-line group work, and e-coaching refers to coach students in more project-oriented designs.
- See e-tutoring for simple tools
- See C3MS for an example of an activity-based learning environment supporting both tutoring and coaching.
- See Intelligent tutoring systems for advanced technology popular in the nineties.
- Carol A. Higgison (ed.) (2000), Online Tutoring e-book. WebSite. Excellent resource for starting. Includes a large collection of case studies.
- Class, Barbara & Daniel K. Schneider (2004) Tutorat, socio-constructivisme et capitalisation des connaissances dans un portail communautaire utilisé en éducation à distance, paper presented atColloque sur "L'industrialisation du tutorat en formation à distance". 
- Sabine Seufert, Dieter Euler (2005), Learning Design: Gestaltung eLearning-gestützter Lernumgebungen in Hochschulen und Unternehmen, SCIL-Arbeitsbericht 5 September 2005.