AtomicSeek
- Search with explicit keyword phrases blocked from resolving results.
- http://www.atomicseek.com/

ForParentsOnly
- Dedicated to parents and parenting information on topics like adoption, family, pregnancy, baby names and home schooling.
- http://www.forparentsonly.com/

AO-Soft
- Offers a safe way to search on the web.
- http://www.ao-soft.com/

StopDog
- Uses advanced filtering technology to deliver millions of web sites in a safe environment.
- http://www.stopdog.com/