The authors adress a number of inter-related issues in learning theories, learning designs, implementation and sustainability of e-learning communities and collaborative issues including collaborative dialogue and theories of communication. As researchers and practitioners (i.e. people who are actively involved in design, implementation and delivery of networked e-learning and who carry out critical research within that practice domain) – the authors intend to present three papers based on three critical case studies. The three cases (carried out and researched by each of the authors) describe and illustrate different ways/models of incorporating digital technology in learning designs.