How to start a letter? (dear/to whom it may concern)

Question

What are some of the different ways to start writing a letter?

Answer 1

Hi, Andy.

Estimado Juan:

Estimado Sr. Mendez:

Querida Alicia:

The Spanish equivalent of "to whom it may concern" is a quién corresponda.

(See more examples here on Spanish.About.com)

Answer 2

Here is a great reference for protocols on writing both personal and business correspondence in Spanish:

Letter Writing