For a very nice overview of the entire local search space, check out the Local Search Guide. More profiles and resources have been added.
Here's the new stuff:
"The Search Tools section of the Guide, which now includes a Mapping category, profiles products and services that enhance the search experience. Mapping companies, such as MapQuest.com and Maps.com, provide targeted maps and driving directions that lead consumers to businesses identified through local search queries. This addition reflects increased mapping enhancements to search engines and IYPs."
I'm slated to write the next viewpoints piece. There are tons of things to discuss, but let me know any topics of particular interest.