1. Search for your Google Places listing on Google Maps
2. Click one of the two More Info links next to your Google Places details
3. In the upper right corner of the resulting Google Place page click Link
4. In the resulting URL, delete everything after the CID number. Your resulting address should look something like this: http://maps.google.com/maps/place?cid=4250254080900850257
Now that you have it you can share it with people. This is a great way to get people to submit reviews for your business against your Google Places listing. Put the link wherever you can put a link (website, email campaign, email signature, social media pages, etc).