In this video, Leeann Renninger offers some great tips for providing feedback that could be incorporated into any type of communication with customers as well as co-workers.
Take a look at this article from Forbes Magazine about Small Businesses Improving their Social Media Presence.
The New York Times wrote an article about the use of Social Media in Business. You can access it by clicking on the picture below:
Hiver online communication company has some guideline for Writing Awesome Customer Service Emails that also provides templates to follow if you are unsure of how to phrase your business communication.