The Urban Scrawl feed is currently available in the following formats / sources (click to access) :

Many websites have links labeled "XML" or "RSS" or "Atom". All of these are ways of saying that you can find out about updates to that site without having to browse to it yourself to check. This feature is referred to as Syndication or Aggregation, or sometimes it's just called Subscribing.

You need a 'player' of some kind to subscribe to feeds. The good news is, there are number of these tools available, and many of them are either totally free or free to try. This 'player' is called a feed reader (or sometimes it's called a news reader or RSS reader or RSS client - all these terms mean the same thing). This tool lets you subscribe to any feeds you want, checks automatically to see when they're updated, and then displays the updates for you as they arrive. Groovy huh.

Feed readers come in two basic varieties - web-based, or as an installable program. If you use one of the web-based readers, you can access your feeds from anywhere, just by signing into the website that manages your feeds. If you use a feed reading program that installs on your computer, your feeds can be stored for you to read later, even if you're not connected to the Internet.

For web-based feed readers, many people choose services such as Google Reader (ideal for gmail users) or Bloglines, both of which are free services designed specifically for reading newsfeeds.

If you prefer a feed reading program that you can install on your computer, you can use FeedDemon or NewsGator for Microsoft Outlook if you use a Windows environment. Both tools are made by the same company as NewsGator online, so you can switch between these programs and the web-based reader at any time. If you're on a Macintosh running OS X, one of the more popular feed readers is NetNewsWire, which can also connect to the web-based services.

Most web browsers (for both Windows and Mac) now have built-in support for feeds as well, such as Mozilla's FireFox browser (highly recommended), or their email client, Thunderbird (also highly recommended).

Despite the geeky technical names, feeds are very simple. They're just small files, much like a web page. Feeds have a special format that lets you collect information from a wide variety of sites and display the updates all in one place, as they occur. Most feeds are offered for free.

RSS stands for "Really Simple Syndication" and Atom is just a name, not an acronym.

Enjoy.

(exerpts taken from 6Apart's 'about feeds' article)