| ObservadorProfesional ("Soy Observador Profesional") |  | OGoregen ("I am a student who intrested in astronomy from Turkey. I am an amateur LEGO Technic builder...") | |
 | Oliver ("Hi Folks, i come from germany, work as an IT-Consultant and love to play my keyboards and...") |  | Orin1792 ("I am from Durham in the north of England . I like film, and computing. I have a love of...") |
| Omega ("HI there, I am a 65 Year old man and love doing things on the computer and roam the net...") |  | Oedipus ("My name is Mike Mathison and I am a college graduate in IT and Web Design. I am currently...") | |
 | Odessa ("I'm a Swinburne Uni Astronomy Student.") |  | Owner ("I'm a 45 year old chiropractic physician. I live and practice in the suburbs of Chicago....") |
 | Omegaone2002 ("Hi, My name is Mark I'm from Bossier City Louisiana I work for Culligan water treatment...") |  | Odari |
