- Of Like Heart And Mind - Listing for singles worldwide. Includes newsletter and search utilities.
- One 2 One - Personal ads with information about One2One magazine.
- One2OneMatch.com - Anonymous personal ads.
- Online Love Connection - Picture profiles, advice message board, chat, and horoscopes. Registration required to access, fee charged to initiate contact.
- OtherSingles.com - Photo personal ads. Advice, chat and message boards.
