One of the big advantages of RSS feeds is that you get content that looks like its yours. You dont have to create it or pay a writer to write it. Best of all, you wont get in trouble with the search engines. Why not? Because RSS feeds are completely legitimate from the point of view of search engines. I think this is very important especially I have talked about Project Black Mask before.
It’s useful to your visitors who are looking for information related to the theme of your site. And with RSS feeds, your site is constantly updated and fresh, because the feeds update as soon as new articles or content is added to the source you pull your content from. With big sources, this can happen every single hour.
Forthermore, RSS feeds are completely automated so you don’t have to do anything to keep your pages fresh and updated.