Multiple URL's, Multiple PR's?

If you have diffrent listing and diffrent backward links....

[jitesh]

I really need your suggestions on following area.

There are many ways to reach one's home page.

1) http://www.domainname.com
2) http://domainname.com
3) http://www.domainname.com/index.html

All the URL's are considered as different pages from search engine perspective.

Now if you have a listing in google as http://domainname.com and all the backward links pointing to you are in the from of http://www.domainname.com.

Then do u think that this can be a cause of not gaining page rank in spite of adding backward links

Thanks in advance.

[fathom]

Based on practical experience - there isn't really that muck difference.

If a link refers the destination one way or the other they are counted, in most search engines.

If you search backlinks you may or may not see them - due to the variations in referrals but the PageRank passed is going to the same place.

The exception would be a sub-domain www.domain.com and domain.com directed to different locations.