In future domestic environments, we will have various home appliances that are connected to home networks. Connecting these appliances requires middleware for providing high level functionalities that hides details of complex issues about respective home appliances. The middleware should be simple and extensible. Also, the middleware needs to access various services on the Internet in an easy way because it is very important to provide future home entertainments that access Internet services. In this paper, we show our Web-based middleware for home computing environments. Recently, many companies have announced to sell Web based home appliances. Our middleware enables us to integrate these appliances without their modifications. Also, our middleware allows us to build attractive future home applications that are connected to the Internet. We also show some experiences with our current prototypes and describe current ongoing work to improve the current system.