If used correctly, RSS feeds can add useful keyword rich content to your site if you syndicate content from good sources.
To this end, I am offering a feed from one of my sites: http://feeds.feedburner.com/latest-poker-news which contains Latest Poker News in RSS format for easy syndication.
Feel free to syndicate the content on your poker or gambling related sites (using some aggregation plugin or other).
It is updated quite frequently and often has exclusive info which I get before press releases are sent out, leading to good targeted traffic!