How Rss works?

[vahan4033]

I want use Zend framework for Rss but I can't completely understand rss working principles in general.
If anyone can help me I will be very appreciate him.

How much i understand by using Rss I can display part of content from another page (for example cnn.com) in my web page. Rss is a xml document that serves this part of content ( cnn.com ) by parsing it (via DOM) I can retrive an information that i need and display.

Now my question
-how will i get that rss xml document that on another server ( cnn.com )?
-can i make ajax request to (cnn.com) to get that xml file?----( if it is possible, explain as much as possible detailed how it can be done)
-how that server does allow to access rss document?

[jschoenwolf]

now that we know what RSS is you can use Zend_Feed to import RSS into your website.

Zend_Feed reference:
http://framework.zend.com/manual/en/zend.feed.html

cnn's list of RSS feeds, for example:
http://www.cnn.com/services/rss/

[llcagreement]

would it be possible to integrate this into a legal form site for exmpale a llc operating agreement? Thanks!