I imagine that someday Google will introduce a paid option that co-exists with their local business results so that they can make more money out of this incredibly valuable traffic. But, for now, they seem to be content with investing in the user experience and building local business profiles to sprinkle into their search results. So, here are a few links that I've found that are helpful for anyone looking to get displayed in those results.
- Interview with Carter Maslan, Director of Product Mgmt for Google Local
- Anatomy & Optimization of A Local Business Profile