Welcome to the Ripple wiki! Ripple is a functional, stack-based query language for Linked Data and other RDF data sources. Ripple programs resemble path expressions as in XPath and postfix-style procedures as in Forth. Every program has an RDF representation, so you can embed programs in the Web of Data as well as querying against it. The implementation is written in Java and includes an interactive command-line interpreter as well as a query API which interoperates with Sesame 2.0.