With a ton of RSS reader applications available, it would be difficult to cover them all. Here are a few of the more popular solutions you can suggest for your client.
Google Reader
- Go to (http://www.google.com/reader) and sign in to your Google account.
- Once you are signed in, just click the Add Subscriptions link and paste the address in the text field that appears.

Mozilla Firefox
- Paste the RSS URL in the address bar and push "Enter" to go to the site
- You will see the RSS feed load up in the browser.
- Choose where you want to add your feed to in the drop down box.
