Below are links to several websites that address methods of business correspondence, as well as assistance with applying appropriate tone and language.
Below are links to information regarding graphic organizers and presentation tips.
Below are books that provide insight into areas you may want to explore in regards to business communication. However, the Walton College of Business, Writing Studio provides writing resources specifically designed with your studies in mind.
Excuse me: The survival guide to modern business etiquette by 
Strategic Communication for Organizations by 
The Languages of Leadership : How to Use Your Words, Actions and Behaviours to Influence Your Team, Peers and Boss by 
Style Guide for Business Writing by 
