Many believe that duplicating content penalizes websites. This just isn’t the case at all. If it were true, it would be pure chaos out there. If you think about it, much of the web is comprised of tons of duplicate content. It’s a big monster feeding on itself most of the time.
Delivering the Search Engine Results (called SERPs for short) is what Google does best. Instead of listing 5 or 10 pages with the same content, Google uses its algorithm to find the most relevant content from various authority sites discussing the same subject matter.
Google simply filters the results and proving you with the best possible mix for relevant search terms. Google is really smart about who’s got the original content and who is reusing it. For those reusing or copying content, Google simply shuffles these pages lower it it’s search results.
So word to the wise …. if you are re-using RSS feeds or grabbing content you may be feeding the monster! Instead spend your time offering your visitors something useful or interesting to read. Or better yet, spin a different opinion about the same discussion.