IBM and Yahoo have come together to launch an entry-level enterprise search product. The IBM OmniFind Yahoo Edition can index up to 500,000 documents, more than 200 file types and documents in more than 30 languages. The enterprise search is a three-click install and comes with the open source Lucene library for cross-platform, full-text indexing.
You can download the product here.
Download IBM Omnifind Yahoo !Edition