Ideally, you can follow specific Twitter account using respective RSS feed using 3rd party tools (like Twitterfeed.com). Twitter recently introduced Twitter Lists and it for sure is creating lot of buzz with different Twitter users creating their own Twitter list containing favorite Twitter users.
Now you can easily follow specific Twitter lists by subscribing to respective RSS feed. This is possible using web service “Twitter Lists to RSS” [not available now – http://twiterlist2rss.appspot.com/]. Just enter Twitter list URL and click on “Get an RSS Feed” button. Then use the RSS feed URL in any online or offline RSS Reader. Simple, isn’t it?