Whois

Hi,
does anyone knows how i can get rid of the REGISTRAR’s name when i search the WHOIS.
why is it that some companies are able to do it. (e.g yahoo.com)
1---------is it that i have to become my own REGISTRAR or
2---------sign up for partnership the only possible ways…

wat other ways are there.? possibilities?

i’d appreciate any hints on this.
?or where i should have got this posted to get my questions answered.

I’m already very confused please don’t confuse me further

;(