Letter Templates

Acceptance Letter
(http://owl.english.purdue.edu/Files/39.html)
Letters Concerning Employment
(http://owl.english.purdue.edu/Files/43.html)
Accepted Another Position Letter (sample letter) (http://owl.english.purdue.edu/Files/44.html)
After Interview Letter (sample letter)
(http://owl.english.purdue.edu/Files/45.html)
Cover Letter Seeking Academic Position(sample letter)
(http://owl.english.purdue.edu/Files/46.html)
Job Offer Letter (sample letter)
(http://owl.english.purdue.edu/Files/47.html)
Application Letters: How to Sell Yourself
(http://owl.english.purdue.edu/Files/57.html)
English Aids
Here is a collection of various types of letters in English - a letter responding to an advertisment for a job, a general letter inquiring about the availability of interships etc.
(http://www.coe.uncc.edu/~brmattin/adds.html)