Recent standards are turning hypermedia into a homogenous information fabric that interconnects everything: physical objects, documents, abstract concepts etc. Clients can not only browse, but also observe and act on this hypermedia fabric. We present our vision for a new class of multi-agent systems that are: 1) aligned with the Web architecture to inherit the properties of the Web as a world-wide, open, and long-lived system, and 2) transparent and accountable to support acceptance by people.