Over at SEOMOZ, in their Whiteboard Friday Rand Fishkin and Duane Forrester from Bing explore features in the Bing Webmaster Tools. This is a 30 + minute video and I believe, well worth the time.
A new company, Bizible studied ranking factors in Google Places.
Top 5 Factors For Improving Ranking For Pages In Integrated Results
Integrated results are those associated with pins on the map.
1. The Places page category matches a broader category than that of the search (search for “pizza”, Places category = restaurant).
2. The search category appears in the business name (“Rocky’s Pizza” for a “Reno pizza” search).
3. The search category appears in the “at a glance” section.
4. Google reviews improved ranking. Five or more helped the most.
5. Having photos.
Other Factors For Improving Ranking For Pages That Are Not In Integrated Results
Having the search city in “at a glance”.
Having the search category or a synonym in in review content.
Having the search category or a synonym in the business description.
The primary category matches the search category.
Having a secondary business category that was a broader category than the search category. i.e. secondary category is “restaurant” when searching for “Reno pizza.”
Owner verified improved page ranking.