TextNet is a "distributed" wiki. While normal wikis are designed for groups to create a single document collaboratively, TextNet is built for authors writing multiple linked documents and texts with overlapping or partially overlapping content. TextNet helps writers to compute, track, and merge differences between diverged documents. The intention is to help writers easily collaborate where possible—while differing where necessary—in an ad hoc and lightweight manner. The project builds on thinking and tools from the world of distributed source management and version-control systems used in the free and open-source software community.