When you open your Yahoo Messenger today, you will notice that none of your friends online. Tomorrow you open again and it's still same. Why? Are they really offline or what? This trick will show you how to know the online status of your friends. There are many ways to do that but I will show you the easy way. But remember, even you will know how to do it after this, don't bother people who doesnt like to chat with you. Be smart...
First, go to http://www.invisible.ir/. You will see a box (1) and a search icon (2). Just put you friend's e-mail on the box and click to the search icon. It will tell you weither your friends are online, offline or invisible.
Picture 2: Search Box
Done! That's the way to view your invisible friends. If you don't know how to get your friends e-mail, find it in their contact details. Inform to me if this article helps you.