http://www.digitalpoint.com/tools/suggestion/
http://freekeywords.wordtracker.com/
http://www.keyworddiscovery.com/search.html
https://adwords.google.com/select/TrafficEstimatorSandbox
http://adlab.msn.com/ForecastV2
http://adlab.msn.com/contextSim/Default.aspx
http://tools.seobook.com/general/keyword/
http://www.seosleuth.com/site/www.seochat.com
http://www.seodigger.com
http://www.spyfu.com/
LInks to other sites you may find helpful for this topic
Google Places Optimization - Optimize Your Google Maps Listing to ...
Google Places
Optimizing Your Google Places Page | SEOmoz
