NOTE 13 — COST OF REVENUE

Cost of revenue principally includes payroll and employee benefits associated with personnel employed in customer service and operations roles, fees paid to external providers related to the provision of services, reimbursable expenses, technology and telecommunications expenses as well as depreciation and amortization of operating assets. The components of cost of revenue were as follows for the three months ended March 31:

(in thousands)	2013		2012

Compensation and benefits	$	32,579	$	27,485
Outside fees and services	34,895		28,653
Reimbursable expenses	20,266		28,706
Technology and telecommunications	5,491		5,124
Depreciation and amortization	3,731		1,792

Total	$	96,962	$	91,760