Secondary lazy-accessible serialization of electronic content

In one embodiment, a method comprising selecting a first node included in a data structure, the data structure representing, in a node-and-link representation, a first portion of electronic content, the data structure including a first external link being associated with the first node, the first external link referencing a first serialization, the first serialization representing a second portion of electronic content in a representation differing from the node-and-link representation of the data structure, augmenting the data structure using the first serialization comprising constructing a set of new nodes, the set of new nodes including all nodes constructible from the serialization, selecting a target node from among the set of new nodes, inserting the target node into the data structure, and inserting a first inter-node link into the data structure, the first inter-node link connecting the first node and the target node, the first inter-node link corresponding to the first external link.