SUMMARY OF PRINCIPAL ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2014

SUMMARY OF PRINCIPAL ACCOUNTING POLICIES

Schedule of estimated useful lives of property and equipment

	Estimated useful lives
Leasehold improvements	Lesser of the lease term or their estimated useful lives
Computers and office equipment	3-5 years
Software	Lesser of 5 years or the contracted term of use
Vehicles	4 years

Schedule of allocation of share-based compensation

	Years ended December 31,
	2012		2013		2014
Includes share-based compensation related to:
Cost of revenues	$	255,315	$	289,921	$	294,132
Product development expenses		498,500		360,852		448,179
Sales and marketing expenses		68,978		31,938		16,394
General and administrative expenses		1,383,687		1,459,734		1,469,726
	$	2,206,480	$	2,142,445	$	2,228,431