See full details in this post by Vedran Tomic in Small Business Trends.

1. Business information on the web must be consistent accurate, accurate and up-to-date

2. Claim and Verify Your Listing

3. Consolidate your presence on Google Maps

4. Categorize like a champ

5. Describe remarkably

6. Add pictures and videos

7. Add details (Hours of operation, payment options, additional details)

8.Use coupons (or other incentives) to track response

9. Spread the word in sites and directories

10. Get Reviewed