Gmail-Gtalk. One can also use Mobile IM messenger .
All of you definitely have Gmail account and you might have used chat option that is available not only in Gmail but also in Gtalk and Orkut. Here I will discuss about Bug in gmail that enable us to detect invisible user in chatting. Some times while chatting we need to be invisible may be because of lack of time to chat or you want to avoid some one! In the same manner the person to whom you are chatting may also avoid you. But after reading this post he will not be more longer to do so.

Login to your gmail account either from gmai.com or gtalk desktop software. You need to chat with that user for one time only (Its necessary) while chatting (in gmail/orkut) , one window will open as shown above. Click on “video&more” link at bottom of that window, You will see “Go off the record” at top just click on it. Now you are in off the record in google chatting as shown in above fig 3.Do not go for cancel as it will reset the option again. You can chat with him normally now but don’t tell him about your plan!
After the chat is finished (your friend is log off) may be on next occasion say after 1 hour , 1 day, 2 day or at any instance you can check whether your friend is really off-line or he is on-line but Invisible.

Type any message and press enter if the user is on line you will not get any message in return of those messages that simply means he is invisible to you but he is definitely on line. In other case if he is Off line you will get ” user did not receive your chat”.

Rohit Langde is a part time blogger who is pursuing degree course in Mechanical Engg.
Just tried it and It works. Cool Finding
@Engineeer Head, Oh, thanks for your valuable comments.
Another living proof that we can’t totally invisible online. However, this could work well if someone is constantly on offline mode and forgetting to put it back on; otherwise we may need to respect those who intended to be ‘not disturb’. =) I’ll still go for email so the receiver will have time and preparation to respond according to his/her likings. Still, I applaud this good tip, thanks for sharing. ^^
@wchingya
Social/Blogging Tracker
@Ching Ya, Who wants to disturb others privacy……..We can use this just for Fun with our friend !!!
Thanks for the list of site. These site works sometimes. I usually just go to http://www.invisibleuser.com cuz it works all the time. enjoy!
@Vic,
I tried your link above, but when I typed in the yahoo user name it didn’t go anywhere. It was static. Did I do something wrong? Do you have a link like that for gmail too?
@Vic, Where did I provide the links of site??? Its a self explanatory Trick which works 100% and there is no question of “These site works sometimes” . If you are talking about Yahoo thats different and I will shortly post that trick too!
@Widget 87, it’s been working for me for awhile. Not sure why it don’t work for you, maybe try a different Username to see if it works at all for you.
@Nitin Sapkal, I got a list from some blog site via the link on this article..ahh crap probably from text ad link (i hate ads link thats integrated into the articles). I haven’t tried the gmail invisible but thanks so much for the trick, nice to know these tricks.
@Vic, To be honest you comment here without reading this post. Have I pretend for any link in this post? . Hey read the complete post first I haven’t mentioned about any other sites for a single time! Then how can you get confused among text link add.
I also found you often comment on all similar topic sites check (In same language word to word, comma to comma) the proof : http://www.techknowl.com/2009/03/detect-invisible-users-in-yahoo.html (Still I approved your comment)
For a webpreneur Ads are just like “GOD” irrespective of their format! If you dont respect them then its really a SHAME !!!!!!!!
This seems like it would work – I tried it between my 2 computers and gmail accounts. But the only problem I see is that in the middle of the chat with the person, when you click on chat off the record, a message appears in their chat window that tells them what you just did. Is there a way to prevent that?
@Widget 87, You are right both persons will get chat off the record message, But as I said earlier this trick is working only because there is BUG in gmail. and that bug is “chat off the record” but still I will work on your suggestion.
this off the record- think iss okkkk- but cant there be another way ehere we cant disturb the next user nd- can- detect that he or she iss taking to some one else- being invisible- in gtak-i m concerned abut gtak–can any one- solve my -problem out here- thanks in advance-
Hi, there should be a invisible detector for skype also, because most of the persons are staying @ offline mode, which is creating problem, one more thing this is safe for ourselves also because we too would be in offline mode… ha ha haaaa…
im sorry if someone has already asked this question.. but i would like to know.. can u “go off record” from ur blackberry? and also would u see that the chat is off record if the other person chose to do so??
Here we have covered to find invisible user via Gmail chat. It may be possible on Blackberry if it shows “off the record” option otherwise not. Then you will need to have such an app which supports going off the record.
Here is a perl script to find invisible users in gmail. It checks for all users in your contacts. You dont need to send any offlines in this method.
http://blog.sriunplugged.com/linux/find-invisible-users-in-gmail/