Redirection Diellema

[abhijitchat]

I have very much worried about google mechanisms. If a particular URL is redirecting to another URL, then the PR affects considerably. But it is not affecting all the time. I am giving you an example.
If i type "greeting cards" in Google, then the first two results are

http://free.bluemountain.com/

http://www.bluemountain.com/

The first URL is going to the same page.
But if I click on the second URL, Google is redirecting to the first URL.
Is that not a redirection? I am very much confused..... :confused:
Please help me in this matter.....

[lots0cash]

Yes what that domain is doing is redirection.

The main page is redirecting to the sub-domain.

[potato]

Technically, bluemountain.com uses url-redirection using the mod-rewrite module of an Apache 1.3.26 webserver.

the first url is being rewritten directly from the server, the SE or browser gets a HTTP/1.1 302 Found header with a redirection to free.bluemountain.com which comes with a HTTP/1.1 200 OK header afterwards.
It can all done by a simple 3-line .htaccess file in the root directory of www.bluemountain.com

To me it seems that SE's do not regard HTTP/1.1 302 Found headers as spam in all circumstances. They probably check if the following page is alike to the sending page in content, does anyone know more regarding that?