This document summarizes a presentation about using semantic annotation to improve open science. It discusses a project called EUROCORR that published correspondence from Jacob Burckhardt online in an open access format. The project annotated the digital library with metadata, transcriptions, and linked open data to make the information more accessible and interoperable. It argues this can enable new ways of conducting collaborative research by allowing analysis of networks and relationships in the data. The presentation advocates open science by encouraging funding agencies to require data sharing and documenting work online to evaluate and reward new forms of contribution.