Check if your friends in Yahoo Messenger are hiding in invisible mode.When a user seems offline, in fact he/she may be online but with Invisible status (avoiding you?)
This Invisibility can be easily broken with Xeeber, which lets you find out who is online and who is offline. Just enter their name and Xeeber will show their status whether they are visible,invisible or offline.The display picture of your contacts are also shown, even if they are not online.Cool huh!
I have tested this website and works perfectly but sometimes you see an error message ‘System is busy,try again later’.Keep trying after a few minutes and it will work.
Another method is by using the Doodle environment in the messenger.To do this first of all send a buzz to your friend you think is in invisible mode.After buzzing, quickly click IMVironment button, select See all IMVironments, select Yahoo! Tools or Interactive Fun, and click on Doodle.
After loading Doodle IMVironment you can easily check the invisibility of your friend.If the user is offline, the Doodle area will show "waiting for your friend to load Doodle" continuously.
But if the user is online (in invisible mode), after few seconds,you will get a blank page(since the imvironment finishes loading).If so just convey your message to him and please don’t disturb him if he/she is really busy (b’cos I too stay in invisible mode most of the time).