From the BBB Wise Giving Alliance web site.

Peta:
For the fiscal year ended July 31, 2002, PETA's program expenses were:

Public outreach and education3,543,776
International grassroots campaigns3,533,133
Supporting ogranization activities3,300,000
Research, investigations and rescue2,958,806
Cruelty-free merchandise622,246
Total Program Expenses$13,957,961

HSUS:
For the year ended December 31, 2004, HSUS's program expenses were:

Public education, membership information and publications36,319,557
Wildlife, animal habitat and sheltering 11,562,555
Cruelty investigations and regional offices5,945,404
Youth and higher education3,000,848
Legal assistance, litigation and government relations2,599,539
Laboratory bioethics and farm animals1,669,685
Total Program Expenses$61,097,588

ASPCA:
For the year ended December 31, 2003, ASPCA's program expenses were:

Humane education and shelter outreach8,494,094
Communications6,647,970
Animal hospital and clinics6,605,399
Animal Poison Control Center4,139,159
Animal placement and behavior training3,677,182
Humane law enforcement2,676,022
Government affairs1,273,771
Total Program Expenses$33,513,597