RanDmoz - Displays random web sites from the entire ODP or from specific categories. - http://randmoz.habilis.net/
RankSearchEngine.com - Directory based on the Open Directory, with ntegrated website snapshots from Thumbshots. - http://www.ranksearchengine.com
rfresource.com - Radio frequency site uses business category of ODP directory. - http://www.rfresource.com/topsites/
Ristafe Home Directory - Includes entire ODP directory data by RFD dump. - http://www.ristafe.com/
Regiochannel United Kingdom - Arranges the ODP data from the United Kingdom categories to provide quick links to the largest cities. Advertising by Google. - http://www.regiochannel.co.uk/
Religion Explorer - Provides a copy of the Open Directory categories on religion, with added site previews by Thumshots. Also uses Aspseek technology to provide a search engine restricted to sites listed in those categories. - http://www.religionexplorer.com/
Recovery Helper - Includes a copy of the Open Directory categories on substance abuse. - http://www.recoveryhelper.org
Rome-Online - Directory of accommodation in Rome, which includes a copy of the Open Directory. - http://www.rome-online.com/