ArchDB is an addon that will scan your known Archaeology finds and report in a window which artifacts you have not found yet for each race. It will also track which artifacts you have found, with counts.
The main window is opened with the command /archdb
You can toggle showing all artifacts, or only the unknown ones.
Version 1.1:
Shift clicking links will link the artifact to your chat window.
Position and resizing of the window is remembered. To reset to defaults, use /archdb reset
Keybinding option available to open the window.