If you don't know what RSS is, you can ignore this post, or you can ask questions in the comments below, and myself and (hopefully) others will try to clarify stuff for you. You can also read the article at Comixpedia for a glimpse of how this applies to webcomics. Personally, I'm psyched about this. I use NetNewsWire for most of my blog reading, and I like being able to use it for Goats as well.
Lastly, if you like monitoring Goats as a feed, you should make sure you subscribe to the one for Diesel Sweeties as well. If you know of other web comics using RSS, make sure you post links in the comments below.
Update: There's a few good ones listed in the discussion, and I also found Penny Arcade's feed.