Summary: This article addresses when and why you should email a cover letter with your resume.
Question: Should I send a cover letter with an e-mailed resume? What are your thoughts? If you endorse, can you provide a sample?
Answer: If you’re sending an e-mail resume, send a cover letter. I’d insist on that. A sample? “I saw your listing at [where you saw it].” Beyond that, explain that you (1) have the skills to do the job as advertised in the posting; (2) understand the job as it’s advertised; and (3) know something about the company (if the company’s been identified in the ad).
I would also recommend reading these articles for more information about cover letters and resumes:Should You Send a Cover Letter with Your Resume? by Andrew Ostler