The site writes: “Stalk, Don’t Follow — Sometimes you want to follow someone on Twitter, but you don’t want them to know you’re following them. We present to you TweetStalk ? the simple way to stalk Twitter users without having to follow them. ”
How to Use TweetStalk
Step 1 – Download and Install The TweetStalk Firefox Addon
Step 2 – Click on the Stalk Button
Step 3 – Confirm the Twitter Account (If you’re not already logged in to your twitter account, you will need to log-in first for the first time you start using TweetStalk. Simply confirm your username and click on the Stalk button to start stalking….
My Two Cents
I’m not sure why people wouldn’t want to let the person know when they are following but I guess there are certain twitter users who likes to stay anonymous but still wants to deep into the twitter world. So if you prefer to “Stalk” people than to “follow” then TweetStalk is for you :)