If you are a meebo user you would have got an email by now to let you know the same.
I got the following email couple of days ago:
You may have heard the news recently that Google has acquired Meebo.
The Meebo Bar for site publishers will continue to be available and will see continued improvements and new features in the weeks and months ahead.
However, as part of this transition, Meebo Messenger will be retired on July 11, 2012.
As a past Messenger user, we wanted you to know that until July 11 you can download your archived Messenger chat logs. Log into your account on Meebo Messenger for a download link. Please act soon — after July 11, chat archives will be deleted.
If you don't want to retrieve your chat logs, no action needs to be taken.
This is a one-time courtesy email to let you know about the upcoming changes and the availability of your chat logs for download; there is no need to unsubscribe.
Thank you for being a part of the Meebo community. The team here has loved every minute of the past seven years, and we're honored that you chose to trust Meebo as a place to have conversations with friends, family and colleagues. As we turn our attention to a new chapter, joining forces with the Google+ team, we look back with great appreciation to everyone who used and loved Meebo Messenger along the way.
As noted in the email, if you want to retrieve your chat logs, you have to do so before July 11, 2012. You can start by downloading the Meebo Messenger from https://www.meebo.com/messenger.Sincerely,
Sandy, Seth, and the Meebo Team