There are two ways RSS feeds can be setup. First, it can be generated automatically by the software you are using for your site. For example, you'll notice how vBulletin (the forum software which LPA uses) automatically generates an RSS feed for every forum. If you are using software like wordpress, vbulletin, or cutenews, an RSS feed will be automatically generated. Are you using some kind of CMS/forum software on your site? If not, you'll need to write the xml for the feed yourself, which is rather tedious. Click the links below to find out the basics and see some examples. http://validator.w3.org/feed/docs/rss2.html http://www.w3schools.com/rss/default.asp
Uhmmm...I'm actually using a completely phpBB integrated site. So news and stuff is posted through the board.