MUCKE now integrates Wikipedia as one of its core elements. This is motivated by the fact that MUCKE is working with concepts and that Wikipedia is simple a great source for that. The WikipediaTextFacetIndexer crates a somewhat reasonably detailed version of a field-divided structure on any wikipedia dump and maps it to a Lucene inverted index. It is a prerequisite for the WikipediaConceptIndexer.java that is currently still in development. The WikipediaTextFacetIndexer has a fixed (and small set of configuration parametes in the configuration file) that tell the system the name of the indexer class, where to find the dump file and where to put the resulting index. Die Indexer works incrementatal (i.e. it continues where it stopped last time when started). Building a Wikipedia index takes about 5-6 hours on a standard notebook (i5, 8GB of RAM) and when run against a already exisitng index, the indexer skims over the files and tries to find missing articles --- if none are missing, this takes 25 minutes.