Abstract: One variation of a method for automatically registering and distributing modular computer component information and services through a network includes: accessing a device inventory identifying a set of modular computer components installed in a computing device; identifying a first modular computer component for installation in the first computing device, acquired from an online marketplace; identifying a second modular computer component within the first device, substitutable by the first modular computer component. In response to detecting substitution of the second modular computer component by the first modular computer component, in the computing device, appending the first modular computer component to the first device inventory.