Sometimes a record has a lot of links to catalog enrichments (cover, cover text, toc, abstract, etc.) and also a full text link. With not all links having a nice link text that can get pretty confusing to patrons. In the standard, indicator 2 tells you, which link should be the full text link and which are links to related resources. We should use those to show nice labels for each type. http://www.loc.gov/marc/bibliographic/bd856.html Second Indicator Relationship # - No information provided 0 - Resource 1 - Version of resource 2 - Related resource 8 - No display constant generated