1. If your business targets customers locally, make sure your company is included in the local listings at search engines like Google and Bing.
2. If you're not already, start using social media sites to promote your business. Search engines are factoring information from social sites into their rankings.
3. Use Google's or Bing's free webmaster tools to find out if your site is experiencing any issues that may affect your search ranking.
Related Book: Ultimate Guide to Optimizing Your Website