ALT This special issue invites standard research articles and brief research notes for both the statistics and the survey methods sections of the journal. Topics include but are not limited to: Developments in new statistical models and methods for combining, linking, or blending multiple data sources Linking multiple structured and/or unstructured data sources Novel applications, case studies, and/or methodology that merge more than two data sources Innovative methods of obtaining informed linkage consent and reducing non-consent bias Evaluation of data collection and survey processing methods needed to facilitate combining, linking or blending multiple data sources Development of quality indicators for blended, combined, or linked data sources Practical approaches that preserve the privacy and confidentiality of blended, combined, or linked data Sharing or linking data across multiple agencies with data sharing restrictions