Having multiple domains pointing to one website

I have multiple domains related to my forum in some way or another, and i have pointed them to the main site, i havbe about 3-5 domains pointing to this site, and i was just curious as to know will this affect my page rank onall of them, or will they not increase (page rank wise)

thanks for your time

 

worst thing you can possibly do

it will split your pr

 

oo, really so what will i do with my 4/5 domains now, just leave them

 

You should have one main domain.

Any others should be 301 redirected to your main domain. If you are parking then you can split the PR.

Say you have 4 domains. 1 main domain and 3 others. Take 1 of the others and put it on some cheap hosting and have it 301 redirect to your main domain. Park the 2 remaining domains on top of the 1 you just setup to 301 redirect to the main domain.

 

ooo i have about 3 (301 redirects from godaddy) to my main domain, and the other one is parked, which i will remove, so 301 directs is fine...