Do the following:
* Open a new window - File - New
* go to your data source - example NYTimes.com
* Go to the bottom of the page
* Click on the RSS symbol in the lower corner
* Highlight the URL address
* Copy the URL address - Edit - Copy
Now open another window - File - New
* Go to your blog
* Click Manage Category under Community Administration
* Go to Add Feeds
* Select feed category
* Paste the URL address in the appropriate box
* Click save
Go back to your blog and you should see the name of the RSS feed in the box below the categories.