A smart space enhances a networked computing environment by enabling information sharing for digital devices. We consider the emerging case of Internet of Things (IoT) environments, where the role of wireless communication and mobile participation becomes crucial. This paper studies smart spaces created by deploying a Semantic Information Broker (SIB). The latter defines an information hub such that any participant uses it as a knowledge base of the IoT environment. We discuss two directions for SIB deployment options: (i) SIB deployment in dependence on a hosting computing environment and (ii) augmented software deployment with SIB to perform specified knowledge processing. The deployment options are analyzed in respect to such application domains as collaborative work, electronic tourism (e-Tourism), and mobile healthcare (m-Health). Our experimental evaluation study indicates that the deployment options support overcoming the performance issues caused by the wireless and mobile settings of IoT environments.