This paper shortly summarises the working session "Components and Services" held at WICSA 2005 (Working International Conference on Software Architecture). Both components and services are strongly related to software architecture and have now an increased focus in research and practitioners? communities. Both component-based and serviceoriented development, use the same technologies and same or similar principles in architecting of software systems. Still there have not been many interactions between the "components" and "services" communities. For this reason the events like this working session are very important to bring the communities together, to increase the mutual understanding, to exchange experience and to share solutions.