RSS feed = duplicate content??

On my new site, I have a forum that is just an RSS feed from a site related to my site's topic. That site publishes two daily articles. My question is, should I add the url of that RSS feed forum to my robots.txt so that I don't get penalized for duplicate content? The posts have a link to the original article at the bottom.

Thanks...I'm just not sure if I should let the search engines see these RSS posts or not.

It can't hurt to block it, but it likely is not necessary. You won't face any penalty... you just likely won't rank for those posts.

Agreed, It will not make any problem with search engines, RSS threads show as a normal threads. but your site will be an archive for the other sites.

I will leave it alone then. Thanks a lot!!!