The document introduces the SemLib project, which aims to develop semantic web tools for digital libraries. Specifically, it will develop a semantic annotation system and recommender system. The semantic annotation system will allow users to generate and share structured annotations on digital objects in a way that is published as linked data. This supports engagement of both expert and non-expert users in enriching digital library collections. The document outlines the project details, expected outputs, use cases, system requirements, and proposed annotation and sharing models.