4.Capitalized Technology and Content Development Costs

Capitalized technology and content development costs consisted of the following as of:

	March 31, 2016							December 31, 2015
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
	(in thousands)
Capitalized technology costs	$	9,895	$	(6,150	)	$	3,745	$	8,564	$	(5,697	)	$	2,867
Capitalized technology costs in process	1,632		—			1,632		1,640		—			1,640

Total capitalized technology costs	11,527		(6,150		)	5,377		10,204		(5,697		)	4,507

Capitalized content development costs	27,350		(12,134		)	15,216		24,796		(10,931		)	13,865
Capitalized content development costs in process	3,921		—			3,921		4,256		—			4,256

Total capitalized content development costs	31,271		(12,134		)	19,137		29,052		(10,931		)	18,121

Capitalized technology and content development costs, net	$	42,798	$	(18,284	)	$	24,514	$	39,256	$	(16,628	)	$	22,628

Amortization expense related to capitalized technology was $0.5 million and $0.4 million for the three months ended March 31, 2016 and 2015, respectively, and is included in technology and content development costs in the accompanying condensed consolidated statements of operations.

The Company recorded amortization expense related to capitalized content development costs of $1.2 million and $1.1 million for the three months ended March 31, 2016 and 2015, respectively.

As of March 31, 2016, the estimated future amortization expense for the capitalized technology and content development costs is as follows (in thousands):

2016	$	4,852
2017	5,694
2018	4,465
2019	2,743
2020	1,185
Thereafter	22

Total	$	18,961