Summarized financial information by segment for the three months ended June 30, 2021, based on our internal financial reporting system utilized by our chief operating decision maker, follows:


	Business		Consumer		Corporate		Consolidated
	(In thousands)
Revenue:
Hosted services – Business	$	95,092	$	—	$	—	$	95,092
Hosted services – Consumer	—		9,810		—		9,810
Professional services – Business	14,703		—		—		14,703
Total revenue	109,795		9,810		—		119,605
Cost of revenue	38,265		1,798		—		40,063
Sales and marketing	31,915		6,707		—		38,622
Amortization of purchased intangibles	374		—		—		374
Unallocated corporate expenses	—		—		54,124		54,124
Operating income (loss)	$	39,241	$	1,305	$	(54,124)	$	(13,578)

Summarized financial information by segment for the three months ended June 30, 2020, based on our internal financial reporting system utilized by our chief operating decision maker, follows:


	Business		Consumer		Corporate		Consolidated
	(In thousands)
Revenue:
Hosted services – Business	$	72,382	$	—	$	—	$	72,382
Hosted services – Consumer	—		7,587		—		7,587
Professional services – Business	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 six months ended June 30, 2021, based on our internal financial reporting system utilized by our chief operating decision maker, follows:


	Business		Consumer		Corporate		Consolidated
	(In thousands)
Revenue:
Hosted services – Business	$	178,732	$	—	$	—	$	178,732
Hosted services – Consumer	—		18,821		—		18,821
Professional services – Business	29,943		—		—		29,943
Total revenue	208,675		18,821		—		227,496
Cost of revenue	69,875		3,707		—		73,582
Sales and marketing	62,118		13,457		—		75,575
Amortization of purchased intangibles	749		—		—		749
Unallocated corporate expenses	—		—		104,797		104,797
Operating income (loss)	$	75,933	$	1,657	$	(104,797)	$	(27,207)

Summarized financial information by segment for the six months ended June 30, 2020, based on our internal financial reporting system utilized by our chief operating decision maker, follows:


	Business		Consumer		Corporate		Consolidated
	(In thousands)
Revenue:
Hosted services – Business	$	133,435	$	—	$	—	$	133,435
Hosted services – Consumer	—		13,826		—		13,826
Professional services – Business	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)