Duplicate content penalty?

[SEOPTI]

Google spidered our main site on www.site.com and it ranks well.

Three days ago we got a link from a high PR website which links to our site.com without "www." Seems like they forgot to put "www." in front of our domain when linking to it.

Today we see a fresh tag for www.site.com and for site.com

Will this be considered duplicate content?
What is interesting is the fact that site.com has no PR
because it's new and www.site.com has PR, it's an older site.

I believe Googlebot should *not* see a site with www. and without www. as two different sites because it is one site.

[djgreg]

All my domains are working with www and without www. Never had any problems with duplicate content. I think googlebot is aware of that they are the same website.

[fathom]

The "link" or actually "links" bear no relevance to duplicate content, they are just links... you will be 100% ok. ;)

[seindal]

Hi,

I'd be very surprised if Google considered duplicate content from the same IP as duplicate. It wouldn't make any sense, as it is very common to set up server aliases for common spellings and variations of the site name, like with and without www. I sometimes make aliases with ww as well, as it seems a common misspelling.

René.