A large number of web masters are facing their search engine nightmare: Their Google listings have been taken over by another site.
(September 13 2004) The search engines are constantly bothered by spammers, i.e. webmasters who try to manipulate search engine results to gain more traffic. Earlier this year Pandia reported on one culprit who had actually copied large portions of the Pandia site and presented it as his own.
This is, of course, a problem in its own right, as he or she is stealing your copyrighted material.
From a search engine perspective there is another problem: Google hates duplicate web pages, as it interprets them as a attempt at spamming the search engine. Because of this it might ban one or two of the sites. Yes, your site may be banned because someone else has copied it!
Such cases are in clear violation of international copyright laws, and you may bring the copycat to court. However, spammers have now find a new way of stealing search engine listings. They are using the meta refresh tag.
more here:
http://www.pandia.com/sw-2004/40-hijack.html
On a related note:
Now, I've seen I-Frame advertising being promoted recently. This type of ad basically pulls up a page from your site on another's site as an advertisement. What are your opinions of how Google would interpret this? Do you think, for example, I could be seen as a spammer by Google for using this advertising method?