Directory PR4

I have a PR4 directory that is actually a subdomain. It is free with a recip. The main site is not related yet pays for itself and then some but it is kind of a neglected domain except for thie directory. I was wondering as a sub is it worth much? Should I promote it if so how?

 

Many free directories don't accept subdomain websites unless you paid for featured (I don't in mine for example). So it would be worth splitting the directory off to its own domain name.

 

I'm not promoting it or submiting it to other directories. I just submited it to one directory site and it took off from there. Its been up about 6 months.
Ok how would you do that split it off to its own domain? The directory is set up as such sub.domain.com
What you are saying is it should be domain.com right.
If I set it up on its own it would still have same ip right but because of the name change would it not loose its PR?

Thanks for all replies.

 

buy a domain only about $6

 

If I buy a domain name and point it ot the sub will it still show the PR?

 

Ok I think I get it but is anyone knowlegable enough or have had actual experience to anwer my original questions?