Guild Trade Skills is a simple addon that displays guild member professions on the Guild Member Detail frame and gives a quick link to there book. It is designed to make it quick and easy to what someones professions are.
Right now it is fairly basic and I am looking for ideas for making it a bit more advanced. I don't want to go down the route of a recipe search since as far as i know it requires everyone to have the addon.
The only addition I can think of is adding a +/- button to the professions list window.
The only known issue I have ran into is overlapping zone names with professions however it only happens on a few zones and its easy to figure out with the text that is visible.