In a recent article Sharon Housley talks about the benefits of using RSS to display content on your web site. From the article:

RSS offers webmasters a unique opportunity to display fresh content on websites. While publishing an RSS feed is a great way to generate site interest and increase communication, syndicating and displaying feeds from related relevant sources can also generate interest, increase traffic and improve search engine ranking.

Be careful to first read the terms of use for the feeds you might want to display. If you are planning on displaying RSS content on a business site it might not be allowed.

An old client recently contacted me becuase their web developer had add some 'news headlines' to their web site. The web developer was pulling in CNN's RSS feed to display the headlines. According to the CNN Terms of Use:

RSS is a free service offered by CNN to individuals for private, non-commercial use. Any other uses, including without limitation the incorporation of advertising into or the placement of advertising associated with or targeted towards the RSS Content, are strictly prohibited.

Utilizing the CNN RSS feed on a business web site is not an acceptable use. To be safe check to see if the RSS feed you are going to syndicate on your web site has a terms of use, and it it does, make sure it allows for commercial use.