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.
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.