The cover letter should be addressed to a specific person. Phone the organization and find out who is responsible for doing the hiring, then address your cover letter to that person. If you address it to "Whom It May Concern," it may not concern anyone, and may not be read.
	Unless you are specifically requested to handwrite your cover letter, it should be typed. Use the same paper that you used for your resume.
	It is important that the letter be well-organized and look attractive. Make useof white space, but contain the letter to one page. It is a summary - the bulk of the information is provided in your resume.
	There is no such thing as a "general" cover letter. You should prepare a different letter for each position that you apply for as it has to focus on the requirements of each specific position.