The document discusses how user-generated content and social software features can enhance access to digital cultural heritage materials. It defines social software as tools that allow online communication, collaboration, and community-building. Tags and annotations created by users bring similar content together and make it more findable using people's own vocabularies. However, tagging lacks control and standards. The document suggests improving tagging through personalization, social features like comments and groups, and recommendations based on user interests to foster interaction and build communities around digital collections.