LFGScanner is a simple addon that scans chat messages related to LFG and makes finding a group a bit easier.
Usage:
/lfg shows/hides the frame, which listens on chat messages in trade chat, LookingForGroup, and world. The message info is kept for 3 minutes unless another message is received from the player
The filter allows you to filter messages to specific dungeons/raids making it much easier to find groups in classic.
Click on any of the people listed will open up a whisper window with them.