The links may open in a new window but they still open under the domain name. While I don't think the issue of frames has been totally resolved in copyright law, opening your results in another window with your own domain name is not any different than opening in the same window. Opening the new window under your domain name could give the appearance that the content is your own. I think it is a dangerous edge to walk.

I'm not trying to offend you I am just highly curious about the copyright issues involved.

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