L4LOD (Licenses for Linked Open Data) is a lightweight vocabulary for expressing the licensing terms in the Web of Data. The vocabulary is not intended to propose yet another license, but it is intended to provide the basic means to define in a machine-readable format, i.e., RDF, the existing licensing terms. The vocabulary does not provide an exhaustive set of properties for licenses definition. Implementations are free to extend L4LOD to add further elements.
Linked Data Semantic Repository (LDSR) represents a reason-able view to the web of data. It aims to allow users to find resources and facts based on the semantics of the data, like web search engines index WWW pages and facilitate their usage.