As you all can see from the picture below, my site's content is duplicated by FeedReader and indexed at Google. When I clicked at the FeedReader link, it uses some sort of iFrame to draw content from my site live. This forms some sort of content duplication to me, and I believe it does harm to my site.
(Stackoverflow doesn't allow me to post image due to new account, pls click at the link above to see the picture, million thanks to you.)
What can I do to prevent Feedreader to fetch my content to their site? I know robots.txt can perform such function, but I don't know how to do it. Any help would be much appreciated.
I have also highlighted this issue to FeedReader 2 days ago, but yet to get any reply from them.