Usually require 2 years to complete (36 credits or so)
Admission standards generally lower than PhD programs
People with masters degrees usually work in group counseling practices, clinics, program for specific populations (developmental disabilities, drug abusers, battered wives, chronic psychiatric patients, etc.), and employee assistance programs, etc.
In many states people with masters degrees CANNOT have their own private practice.
You can sometimes get a masters degree and then transfer to a Ph.D program. You might lose credits.
Many programs may also ask you for a pre-admission interview.
Here you both get a chance to look each other over.
Ask them about their program
How do faculty support students? How many students make it through? What special benefits do students gain (mentoring, research opportunities, publications, presentations, internships, funding, etc.) during their stay? What is the intellectual community like?