It’s cool that there are so many different RSS readers out there from a reader perspective because people get to choose which solution works best for them but the downside for publishers is how to make it easy for the many different RSS Readers to subscribe. You can put in the head of the document the RSS aware code that looks like this:
Or you can use a javascript solution like quickSub which will create a dropdown menu on rollover offering readers the ability to subscribe in many different readers. Probably their reader of choice is among this list and it’s not too difficult to add more.

I found though that I needed to do some minor editing to make this match the design of this blog. Fortunately, the author created a separate CSS called quicksub.css that makes it easy to change the color scheme.
