The Damn Good Resume
"The website of Yana Parker and his popular books on resumes includes resume writing tips, job search questions and answers, help in identifying skills and talents, and solutions to typical tough resume problems (such as gaps in work history)."
The First and Best Cover Letters
The online version of the standard guide to employment letters by William S. Frank. Nicely divided into sections corresponding to stages or events in a typical job search. Includes an introduction on how to write a great letter and sample letters are included.
JobStar Resume Guide -- Resumes & Cover Letters
"This site has it all -- from explaining what a resume is to resume samples (chronological and functional), cover letters, tips, and so much more."
Rebecca Smith's eResumes & Resources
"This site gives you step-by-step instructions on how to create an ASCII resume. It also contains good information on using the Internet in your job search."