Large institutions in the cultural heritage sector are establishing preservation policies and incorporating digital preservation related activities into their everyday practice. But there are numerous small projects which produce digital resources and the issue of their products’ sustainability quite often is not properly addressed. This paper will take three projects as case studies – TEXTE, KT-DigiCult-Bg and the Parallel Archive – and will offer scenarios based on these cases. These scenarios present three typical cases: a project which prepares stand-alone resources; a project which prepares materials for ingest into a larger repository, and a project with highly dynamic content. The risks in all three cases will be analysed and appropriate recommendations taking into account the specific situation will be drawn. The paper motivates the need to enhance existing standards in the field into the direction of preservation of dynamic resources.