You know how you can log in to services like Disqus, Best Buy, or Hulu, (or our very own comments) with your Facebook account? It’s a fast and handy way to avoid making a new account and password for every web service under the sun, but that free convenience sometimes comes with a price: access to your data. Companies treasure details of your personal life and the implicit right to send you messages. Here’s how to cut off that connection when you’re done with it.
Source: How-To Geek
