WIM (WoW Instant Messenger)Edit
WIM is a World of Warcraft addon which helps you to manage your whispers by making them into a classic instant messenger interface such as AIM, Yahoo and MSN.
With game play in mind, WIM has a large array of options where you can customize how WIM interacts during different situations, such as while you are in combat or in town talking to friends or selling your crafts. The WIM community and their suggestions are responsible for a large variety features that exist inside of WIM.
You can download WIM from WIMAddon.com. The author has a news feed as well as community forums where users can request features or discuss ideas. WIM also comes with a growing list of WIM plugins which expand WIM's feature base even more.
Some features include:
History & History Viewer. You can export your recorded conversations in formats like: Text, HTML & Bulletin Board Code.
Large array of options to customize WIM to behave and function exactly how you want it.