Free samples of cover letters can be found on the website for Quintessential Careers, Susan Ireland and Day Job, as of March 2015. Each website groups the cover letter samples into categories.
From the Quintessential Careers home page, a user can click on Job Seeker, then click on Cover Letters under the Job Seeker Job Search Tools heading. This section includes several articles about designing a cover letter, a cover letter quiz and examples of both full cover letters and sections of cover letters, such as the opening paragraph. The user can select Sample Dynamic Cover Letters for Job Seekers to view over 40 cover letter samples for different types of positions.
From the Susan Ireland home page, a user can click on Cover Letter Samples. He can then view cover letters based on how they were used, such as after receiving a referral to the company or after viewing the job listing on an online job board. There is also the option to view cover letters based on occupation.
From the Day Job home page, a user can click on Cover Letter Examples. The page has information about cover letters, tips on designing one and various sample cover letters. Many of the cover letters have the occupation listed.