The document discusses two models for learning and development - the Amazon model and the Community model. The Amazon model focuses on using social media and networking around formal learning resources, like discussions and comments about courses. The Community model focuses on social media and networking as the primary means of learning, through communities of practice and expertise sharing. The role of instructional designers may change under these new models, from developing formal content to facilitating communities and making connections between people. Skills like community management and moderation may become more important.