Cover Letters - What should you include?

What should be included in a cover letter?
A cover letter should included the following:

state the position you are applying for
state where you heard about the position
clearly state the needs of the employer
state how you can contribute to the needs of the employer.
state some basic knowledge of the company, and some knowledge of the job within the company
Don't be timid, this is a time to sell your self. Don't be overconfident either.
Make sure your cover letter should be 1 page long or less.
Use the basis business letter format
state why you want to work for the company
state when you plan to call to make an appointment for an interview

Singular
burgage

Plural
burgages

burgage (plural burgages)

a medieval tenure in socage under which property in England and Scotland was held under the king or a lord of a town, and was maintained for a yearly rent or for rendering an inferior service (not knight's service) such as watching and warding.