Urania Meta Search Portal
- Directory based on live ODP data, with heavy advertising added from Google, Ebay and other sources. Accepts submissions free. Google search box.
- http://www.astro-search.net/

UK Political Info
- UK politics portal uses extracts from the ODP directory, with site previews provided by Thumbshots.
- http://www.ukpolitical.info

UniversityBooks
- Uses modified version of the ODP category of Science: Agriculture: Institutions.
- http://www.universitybooks.com/

UrlTrends
- Service to monitor a website's PageRank, Alexa Rank, incoming links, listings in DMOZ and its popular search terms. Extracts and provides all URLs in DMOZ's weekly RDF dump.
- http://www.urltrends.com

US Army Info
- Uses ODP data to provide an Army specific directory with their own enhancements.
- http://www.us-army-info.com/

UK.Searchengine.com
- Uses the United Kingdom section of the Open Directory.
- http://uk.searchengine.com/