The document summarizes an Euscreen workshop on audiovisual heritage and participatory culture. It discusses using games and crowdsourcing to generate metadata tags for archival media collections. Players score points when their tags match another player's tag within 10 seconds, motivating fun competition. Over 500 people registered for the tagging game, generating over 340,000 tags for 600 archive items. While initial tags often described short segments and lacked specificity, applying ontology alignment could make the tags more useful for searching collections. The future involves moving toward more semantic tagging.