Look at the Keyword Mod in the Resources section of this site...basically it is a matter of ADDING another field in the links.def, updating your EXISTING links.db, and then editing the ADD/MODIFY template files to include this new field.
I can't find the "Keyword Mod". The closest I came to was something that puts the keywords from "Keyword Mod" into a table, which happens to be the "Keyword Tracker Table-Izer" but the "Keyword Tracker" doesn't sound like anything I need. Mind updating the recording? :> Thx.