My latest lesson in GIS came from Twitter More difficult than deciding what to write about in my first blog post, has been deciding what to write about in my second. I want to keep some sense of continuity in my writing, and briefly thought about describing my learning progress and work experience through the years. However, I also want to keep the topics here current. So, I’ve decided to skip ahead (way ahead) to where I am today. What have I learned most recently about the use of GIS in the planning field? I have been spending an extraordinary…