This book demonstrates how heritage institutions can work with community-based heritage groups to build broader, more inclusive and culturally relevant collections.The internet as a platform for facilitating human organization without the need for organizations has, through social media, created new challenges for cultural heritage institutions. Challenges include but are not limited to: how to manage copyright, ownership, orphan works, open data access to heritage representations and artefacts, crowdsourcing, cultural heritage amateurs, information as a commodity or information as public domain, sustainable preservation, attitudes towards openness and much more.Participatory Heritage uses a selection of international case studies to explore these issues and demonstrates that in order for personal and community-based documentation and artefacts to be preserved and included in social and collective histories, individuals and community groups need the technical and knowledge infrastructures of support that formal cultural institutions can provide. In other words, both groups need each other.