A mash up that would combine google earth/maps and an app like linked in would help affiliates to socialise locally and cooperate based on vicinity, geographic location, target market etc.
I think such a mash up would be quite handy to enter new markets and find established partners. Maybe some filter where one could query for CAP/GPWA/PAW membership including usernames, maybe even sitepoint, digitalpoint and some other boards for other industries would be useful?