Summarized financial information by segment for the three months ended June 30, 2020, based on the Company’s internal financial reporting system utilized by the Company’s chief operating decision maker, follows (amounts in thousands):



	Business		Consumer		Corporate			Consolidated
Revenue:
Hosted services – Business	$	72,382	$	—	$	—		$	72,382
Hosted services – Consumer	—		7,587		—			7,587
Professional services	11,634		—		—			11,634
Total revenue	84,016		7,587		—			91,603
Cost of revenue	26,085		1,622		—			27,707
Sales and marketing	28,926		5,692		—			34,618
Amortization of purchased intangibles	404		—		—			404
Unallocated corporate expenses	—		—		43,320			43,320
Operating income (loss)	$	28,601	$	274	$	(43,320	)	$	(14,446	)

Summarized financial information by segment for the three months ended June 30, 2019, based on the Company’s internal financial reporting system utilized by the Company’s chief operating decision maker, follows (amounts in thousands):



	Business		Consumer		Corporate			Consolidated
Revenue:
Hosted services – Business	$	53,672	$	—	$	—		$	53,672
Hosted services – Consumer	—		6,124		—			6,124
Professional services	11,163		—		—			11,163
Total revenue	64,835		6,124		—			70,959
Cost of revenue	16,960		1,089		—			18,049
Sales and marketing	35,568		3,775		—			39,343
Amortization of purchased intangibles	438		—		—			438
Unallocated corporate expenses	—		—		34,150			34,150
Operating income (loss)	$	11,869	$	1,260	$	(34,150	)	$	(21,021	)

Summarized financial information by segment for the six months ended June 30, 2020, based on the Company’s internal financial reporting system utilized by the Company’s chief operating decision maker, follows (amounts in thousands):



	Business		Consumer			Corporate			Consolidated
Revenue:
Hosted services – Business	$	133,435	$	—		$	—		$	133,435
Hosted services – Consumer	—		13,826			—			$	13,826
Professional services	22,430		—			—			$	22,430
Total revenue	155,865		13,826			—			169,691
Cost of revenue	47,430		3,096			—			$	50,526
Sales and marketing	66,395		10,903			—			$	77,298
Amortization of purchased intangibles	809		—			—			$	809
Unallocated corporate expenses	—		—			88,696			$	88,696
Operating income (loss)	$	41,231	$	(173	)	$	(88,696	)	$	(47,638	)

Summarized financial information by segment for the six months ended June 30, 2019, based on the Company’s internal financial reporting system utilized by the Company’s chief operating decision maker, follows (amounts in thousands):



	Business		Consumer		Corporate			Consolidated
Revenue:
Hosted services – Business	$	105,209	$	—	$	—		$	105,209
Hosted services – Consumer	—		11,531		—			11,531
Professional services	20,621		—		—			20,621
Total revenue	125,830		11,531		—			137,361
Cost of revenue	34,622		2,076		—			36,698
Sales and marketing	65,660		6,719		—			72,379
Amortization of purchased intangibles	899		—		—			899
Unallocated corporate expenses	—		—		66,769			66,769
Operating income (loss)	$	24,649	$	2,736	$	(66,769	)	$	(39,384	)