These sites provide examples of friendly and business letters. Includes explanations on the different parts of letters and general writing tips. Also covers thank you notes and how to address envelopes. There is an interactive quiz and a Powerpoint presentation as well as letters from famous people from George Washington to J.K. Rowling.
This organization matches truck drivers to classrooms so they can write letters to one another. Practice letter writing skills with a real person. NOTE: The website includes a link to discussion forums.