Is it customary for a Credit Counseling Agency to charge a small fee for a debt management plan?

If you enroll in a debt management plan (the kind where the Credit Counseling Agency negotiates with your creditors to lower your interest rate and enable you to make a smaller lump payment each month, and so forth), is it usual and/or customary for them to take some of that payment you make each pay [...] http://bit.ly/m27u4U