RSS is a short description of your page and has a link to the full page; it is used because it's very easy to implement and get better rankings to your website. As in any other domain it has to be some tips and here are a few:
to optimize your feeds you have to

1. post the full text on rss and not only summaries with as many as possible items, categorized by time when posted, or by subject,
2. post your brand name in title, use it in keywords but not too many times, because you can make a spam
3. on your rss feeds make some categories about latest posts and latest comments

You have to remember not to add JavaScript when you use rss feeds because the articles wrote with JS will not be indexed by SE's and you won't see the benefits. Instead you can use HTML, ASP for rss feeds.