Steve,
it was suggestyed some time ago when the great evil weather demon conspiracy was initiated , that people put there location in their "signature" block that pastes on the end of every post you make. seems to be a good idea, so your signature would be for example
Mark "the Beav" Scarborough
Pullman Wa
by that everyone knows where you are
tags, well those are search keys that make the thread easier to search, for example, if its on say LA 46, then a tag for engines would be appropriate