This document presents an opportunity to connect internet-connected devices through a common platform called "ThingCloud". By 2020 there will be over 50 billion internet-connected devices but currently they do not interact with each other. ThingCloud aims to create a platform that allows devices to connect and interact with each other and with users. It will provide a feed of device activity, rules to connect devices, and recommendations. Scenarios describe connecting photo sharing and heating systems. Revenue models include fees for integration and sales commissions.