This paper presents an approach to develop and to integrate highly diverse resources in teaming spaces via personalizable interfaces and virtual collaboration areas. Digital libraries comprise vast digital repositories and wide range of services, users' environments and interfaces, all intended to support teaming and collaborative research activities. We are developing a distributed teaming environments for which services and interfaces include, for example, web-based teaming systems using annotation environment, adaptive WBL, agents-based asynchronous virtual classrooms, computer assisted language teaming using video and annotation, teacher support environment in web-based training system, authoring systems for WBL/T, videoconference-based CSCL environments, user agents for video information retrieval, recommendation agents, 3D visualization aids, and access to digital documents that support specific courses and projects. The diversity of these interfaces, plus the volume and dynamism of the digital content's underlying collections, results in a complexity that has the potential to make the digital library unwieldy for the user. In order to assist users in dealing with this complexity, we are designing environments, termed collaborative personal and group spaces, which provide users with means to access and control all available resources in a uniform fashion from a single vantage point. We discuss our ongoing design and development experiences as well as initial usage results.