A Picture of RSS is worth 1000 words
This picture may help to grasp what RSS feeds do. I couldn't post the snapshot to PulseWire because I don't know how. Instead, I posted it on one of my blogs. Everyday I look at these RSS feeds on my home page. If I find something I like, I can click on the link and transfer the topic to my blog.
To make this photo, I opened my homepage and hit Shift-Prtscrn to take a "snapshot" of the page. Then I opened Microsoft's "Paint". Hitting "paste" my snapshot appeared. Using paint, I cropped the photo a little then saved it.
The photo now being on my computer, I used the Google Blog software to make the post you will see at the following link. Don't forget to click on the photo to make it bigger.