• Vivísimo // Solutions
  Vivísimo's search and clustering solutions are based on a powerful new approach that organizes search results into meaningful categories without requiring any preprocessing of documents. Our comprehensive content search and clustering solution requires no preexisting taxonomy, yet works to enhance existing taxonomies where they exist.
  Velocity search platform is a leading enterprise search platform for enterprises, colleges, and government agencies. Learn moreabout Velocity features such as social search, federated search, mobile search and secure search.
  enterprise government mobile platform search social solutions velocity
  in search with categories engine hierachical search tags taxonomy
• Browse Music & Audio
  Lulu.com - Self Publishing - Free Inetressting Tags Clouds used in hierachical categories
  Lulu.com lets you publish and sell print-on-demand books and e-books, online music and images, custom calendars and books. Free self-publishing.
  book books demand ebo ebook free pod print print-on-demand printer printing publish publisher publishing self self-publish sell
  in links > tag clouds with categories cloud hierachical music publishing service shop social tag

hierachical from all users