Help understanding custom recipes

[andersent]

Hello,

I'm trying to learn how to make my own recipes for feeds to sites I'm interested in. I've looked through some examples and I'm catching on but I'm still learning. I've created a few basic ones. I was wondering if someone could give me help with either of the following 2. I think I just need some more examples of implementing some of the feeds I'm looking at in order to get the hang of this.

http://www.catholiceducation.org/rss/latestarticles.xml
-feed url

and sample article url at:
http://www.catholiceducation.org/art...rts/al0393.htm

Also, I'm wondering if it is possible to point to a feed like the one below, which really is a link to several feeds from various websites or if this is not possible without writing a recipe for each of the websites that the articles point to:
http://feeds.newadvent.org/bestoftheweb