Websites operating in the EU must implement legally required data protect measures. In the event of a complaint regarding privacy your business could be audited.
If you have a Google Plus Brand Page (as opposed to Google Plus Local) you need to add links pointing back to your website, blog, or social media channels.
Small businesses can publish their contact information to free high quality business directories. You can piggyback on high ranking local websites this way.
A useful guide on how to add managers to your Google Plus page. Handy if you work with a web designer, or have a staff member managing social media.
This video discusses basic SEO (Search Engine Optimisation) and how to define your online audience using keywords.