Directory of Bridges, Tunnels and Dams
- A directory of sites related to bridges, tunnels and dams, both commercial and recreational, which incorporates some Open Directory listings.
- http://www.bridges-tunnels-dams.com/

Bigsearch.ca
- Provides a searchable directory based on the Open Directory Project, as well as news from Canadian sources and free space for blogs.
- http://www.bigsearch.ca/

Bonus Bot
- An ODP-based directory, edited and categorized for shopping, discounts, promotions, travel, city and hotel guides, kids and teens. Includes search by Google.
- http://www.bonusbot.com/

BizMena.com
- Searching business resources of regional category of ODP of Middle East and North Africa with Thumbshots.
- http://www.bizmena.com/

Bytehound.com
- Uses ODP directory with Thumbshots.
- http://www.bytehound.com/

Blutensenzen Infozentrum
- German health site uses entire ODP directory.
- http://www.essenzen.net/links.php

Big Web Directory
- Web directory using ODP data. Allows visitors to view in several different color styles.
- http://www.bigwebdirectory.com/

Best Sites For
- Meta search engine using ODP data for directory.
- http://www.best-sites-for.com

BestSearchers.com
- Links to selected search engines, and a directory using live data from the ODP.
- http://www.bestsearchers.com

Business Nation
- Uses the ODP data to supplement the business listings in its business library. Live data. Anaconda.
- http://businessnation.com/library/

Bytedog
- Offers metasearch using Altavista, Alltheweb and Wisenut, automatically filtering bad links, and a directory from the Open Directory.
- http://www.bytedog.com