Yes! It’s easy. Just go to http://twitterfeed.com/ and set up an account. You will need to register and then know the email address and password you used for Twitter and your username and password for Facebook. This is a free service.
Your RSS feed will be: http://yourdomain.com/feed/. If you prefer to do a category then go to that category and get the url and add /feed/ to the end. For example we can get a feed for our FAQs by going here: http://betterwebsitebuilders.com/blog/category/faqs/feed/.