For the last nine years the City of Lacey, Washington has sponsored an Alternative Fuel Fair and Electrathon. For the tenth anniversary in 2008 we're thinking about adding an economy run to the event. Yes, I'm googling to find what information I can. But, if any GasSavers know of other economy runs, I'd sure like to link up. Public events are a lot of work and maybe we can learn from others.
I think beatr911 proposed the fuel economy run, so he'd be the one to talk to. It has a couple posts in the 'Real Life Get Togethers' forum... you might want to get this thread moved there. I work in Lacey at Woodland Square Loop, but haven't actually been to one of the fairs yet. It sounds fun though.
The idea was a 'Tour de Sol' type of run, but 'Craig Vetter' ran contests back in the 80's. Also, 'Wayne Gerdes' gets a lot of press for his hypermiling. Google those and you'll get lots of hits. There are other active mileage forums at cleanmpg.com, greenhybid.com and tdiclub.com, but there are more I'm sure.