Adding a footer to external links

Hi everyone, i am currently working on an application which hosts lists of links that can be voted up or down by users (think reddit/ digg). To make things easier on lazy users I have been working on a way that would allow users to vote on links after they click them. My idea was to add a footer/ toolbar when these external links are clicked. So for example if a user clicks a link going to http://somesite.com the page will load as normal, but at the bottom of the page there would be two buttons which vote the link up and down.

However i’m not sure what the best method to implement this. The only idea i could think of would be to have an iframe wrapped in a div and then below this have the toolbars html. The problem with this method is that some sites such as Google for example use frame busting and so this excludes all links from Google from my application; which is less than ideal.

So my question is how can i get around this? Or is there a more modern method for accomplishing this without the use of frames?

Thanks.

Maybe just open a new window smaller than full screen and kill as much of the chrome as possible. Then some/more of them will be likely to kill the popup/new tab and return to your site. You are sort of in a gray area with respect to web usage and ethically with respect to how to interact with your users.

I kinda figured there wouldn’t be a straight forward/ ethical way to do it. I guess i will just have to drop it as a potential feature. Thank you for the response though.