Creating jump breaks in your blog posts can be easily done right from the post editor, without the need for any HTML changes.
The only thing you have to do is to add this code into the post editor:
There are many feed readers going around with a variety of approaches and features - however a good place to start is with a couple of free and easy to use web based ones like Google Reader and bloglines. Either one will do if you’re starting out (I prefer Google’s Reader) - as I say there are many others to choose from but to get started either of these are fairly easy to use and will help you work out the basics of RSS.
Both of these feed readers work a little like email. As you subscribe to feeds you’ll see that unread entries from the sites you’re tracking will be marked as bold. As you click on them you’ll see the latest update and can read it right there in the feed reader. You are given the option to click through to the actual site or move onto the next unread item - marking the last one as ‘read’.The best way to learn how to use either Google Reader or Bloglines is to simply subscribe to some feeds and give it a go. Both have helpful help sections to get you up and running.