Google Earth was released almost a year ago, on June 28, 2005. One of the very first things I did with it was download Harry Love’s stages of the Tour de France, which ran from July 2 that year. Those files first made me aware of the possibilities for user-contributed mapping in Google Earth. I started this blog soon after.
Fast forward to June 2006. Harry has a new post up about Google Earth and the Tour de France, wherein he suggest plenty of new ways to get involved geospatially. (For starters, you can download the stages from Google Earth Community, courtesy of lucifer666.)