[DATE, ex. Monday, March 31, 2008]

[NAME, COMPANY AND ADDRESS, ex.
Link Building
XYZ Inc.
1234 First Street
Suite 567
Anycity, Anystate  85245]

Dear [NAME, ex. Link Building],

I would like to thank you for providing me with the information I requested regarding [STATE SUBJECT, ex. the type of services your firm provides].  I found the information both interesting and applicable to my goals.

Again, I appreciate your effort and help.

Sincerely,

[YOUR NAME, ex. Jill Jones]