Meebo is one of the most popular and useful online web messenger that allows you to connect with all your friends, no matter where they do their instant messaging. Meebo lets you access your buddies on all the major networks including AIM, Yahoo!, MSN, Google Talk, ICQ and Jabber in a single buddylist, right from your browser.

You can even do instant messaging across all your favorite IM networks right from your browser. The Meebo Firefox Extensions allows you to have a smart buddylist, sidebar and visual notifications when your friends send you a private message.

For those of you who must know, they can also use Meebo on their iPhone and T-Mobile G1 Android phone.

Meebo for Android allows you to log into all your IM accounts and send messages for free with Meebo's first downloadable application for a mobile device. Meebo stays connected and keeps track of your IM history so you never miss a message.

Similarly, you can also use Meebo on your iPhone by simply visiting www.meebo.com. It offers a user-friendly interface which you can customize for easy access.

If you own any of the above devices and you love chatting on your IM messengers then Meebo is a must have app for you.