This book, The Start Up of You, looks very good to me because it explains how networks (most easily maintained online!) create value that extends beyond finding a job and includes learning, building connections, etc. Reviewed by Claire Reinelt, April 26, 2012.
article by Simone C. O. Conceicao, July 2014, on designing online learning for learners. Reviews book: Design Alchemy by Roderick Sims.
Excerpt
"The learner should be engaged in a learning activity at any point in the course. Sims recognizes the need to test assumptions, construct solutions, adjust variables, and/or introduce content within the online environment. "