Support the Courage Campaign:
http://www.couragecampaign.org/page/s/prop8pledge

and

Boycott Mormon Businesses:
http://message.snopes.com/showthread.php?p=793729

from the above thread:

MARRIOTT HOTELS

PRICELINE.COM

ALBERTSONS GROCERY STORES

K-SWISS SHOES

HOUSE OF FABRICS

NATIONWIDE INSURANCE INCLUDING ITS AFFILIATES SUCH AS ALLIED.

SWIFT TRANSPORTATION

EARTH SHELL

CORVIS

HUNTSMAN CHEMICAL

OAKLEY

NPS PHARMECEUTICALS

MEGAHERTZ CORPORATION

CORNERSTONE REALTY INCOME TRUST

KNIGHT TRANSPORTATION (TRUCKING)

MERIT MEDICAL

PLUS all those companies that are directly owned by the MORMON CHURCH
outside of Utah, many of which are FOR PROFIT.