Data preservation should be out of scope for the Data on the Web Best Practices Working Group (DWBP WG) as data preservation is a large complex field. DWBP should be about how to access data and not how to preserve it. The DWBP WG should use the work of other groups such as Long-Term Archive and Notary Services (ltans). The Long-Term Archive Service Requirements should illustrate the complexity of this field. A lighter read might be A System for Long-Term Document Preservation.