There are three fruitful reasons to improve your site by using RSS.
1. RSS data Feeds Provide Instant Themed Information
There are several publishers of RSS feeds that are specific to a particular theme. Since the data feed is highly targeted, it could contain several keywords that you want to rank highly for. Adding these keywords to your pages helps Google tag your site as one with relevant content.
2. RSS data Feeds Provide Fresh, Updated Information
RSS data feeds from large publishers are updated at specific intervals. When the publisher adds a new article to the feed, the oldest article is dropped.These changes are immediately effected on your pages with the RSS feed as well. So you have fresh relevant Information for your visitors every hour or day.
3. RSS data Feeds Result in More Frequent Spidering
The Googlebot, my page that had the RSS feed included into it was as good as a page that was being updated daily, and in its result, was a page that was visiting daily. So in this way is that you will have your site being indexed more frequently by the Googlebot and so any new pages that you add to your site will be picked up much faster than your competitors.
Better Rankings with RSS
RSS is the latest craze in online publishing.RSS or Rich Site Syndication is a file format similar to XML, and is used by publishers to make their content available to others in a format that can be universally understood. RSS allows publishers to "Syndicate" their content through the distribution of lists of hyperlinks.
Google Search engines likes to tightly-themed pages.
Where RSS data feeds, usually sourced from newsfeeds or blogs, often correspond to a particular theme or niche. By using highly targeted RSS feeds, you can enhance your site's content without having to write a single line on your own.
More Site Maintenance: 
