Sindice has now gone public beta, it's a Semantic Web Search Engine centered on indexing and ranking online RDF data sources - 11 million RDF documents currently indexed, including a lot of big data sources such as DBpedia (the semweb view of Wikipedia). The response speed gave me quite a shock. You can give it URIs (including those of sitemaps) and/or ping to get your data in there. The stuff it ... Continue reading