The Don't Amend Alliance has raised more than $500,000 this year to campaign against the amendment, while three other groups trying to persuade voters to change Utah's Constitution together have collected just over $16,400.

According to financial disclosure forms filed Wednesday, the Don't Amend Alliance raised $255,000 from June 1 to Sept. 15. Yes for Marriage raised about $8,800. The Constitutional Defense of Marriage Alliance has raised $7,600. And the Pennsylvania-based Traditional Marriage Crusade raised no money, but spent $10.91.

Don't Amend Alliance Director Scott McCoy says his committee will not stop raising money.

"We obviously need to raise more in this state," he said. "With the uphill battle that we have, we need to communicate with as many people as possible."

Yes For Marriage President Susan Roylance has donated $6,750, most of her group's funds, and a book she wrote about defending marriage. Roylance expects to be paid back when others donate to the cause. "Some of it's just starting to come back," she said.

The amendment's co-sponsors, Republican lawmakers LaVar Christensen and Chris Buttars, are keeping The Constitutional Defense group afloat: Buttars has loaned it more than $4,500 and contributed another $1,000. Christensen has contributed $2,000.

Despite dozens of individual contributions, Don't Amend depends heavily on WordPerfect founder Bruce Bastian for funds - about $330,000. The Human Rights Campaign donated $50,000 and the National Center for Lesbian Rights gave $5,000 to the effort to defeat Amendment 3. Don't Amend has paid Love Communications $25,000 for focus groups and advertising. And the group has paid nine full-time employees and four interns.

Don't Amend has $57,000 left to spend, Yes for Marriage has $7,700 and Constitutional Defense $1,000.