The Network Effects Bible

Network effects, which make a product more valuable to each user as new users join, are presented as the best form of defensibility and the source of most value created in technology since 1994. The article states that founders who understand how network effects work will be better positioned to build category-defining companies. It describes 16 types of network effects ranked by strength, from physical networks like landline telephones to tribal and hub-and-spoke networks, and it explains concepts such as node density, link directionality, clustering and critical mass.