Four tips for local search is a new, solid article by one of SES Denver's . She discusses listing your website, promoting your address, and some other techniques.
My thoughts on the article?
First, the fact that the tips focus on being listed shows the basic level at which local search engine optimization is at. It would be interesting to see how to actually improve rankings, rather than simply be listed.
Second, while local search is growing, many more people just use a regular search engine and add their city name to the keywords in their search. For example, many people search for "used cars Canada," rather than go to a local engine and search for "used cars."