Activists who oppose the ban on gay marriage are boycotting businesses whose employees or owners contributed money to the Yes on 8 campaign.

More than a week after the passage of Proposition 8, activists opposed to the ban on gay marriage have shifted their protests to new arenas -- using boycotts to target businesses and individuals who contributed to the winning side.

The effect of the boycotts remains unclear. Merchants said that the overall poor economy made it difficult to tell whether their businesses were declining specifically because of the threats. But the protests have been highly visible and have drawn strong objections from backers of the initiative.