Of course it's for an organization she doesn't like:

“Make a donation to Planned Parenthood,” the anonymous e-mail message urged. “Of any amount. In Sarah Palin’s name.”

The message, which began circulating widely on the Internet last week, had one more instruction: request that the personalized thank-you card from Planned Parenthood be sent to Ms. Palin, the Republican vice-presidential nominee and a vocal opponent of abortion, at the McCain-Palin campaign headquarters in Virginia.

So far, the scheme seems to be getting a strong response. As of Friday, Planned Parenthood had taken in $802,678 in donations from 31,313 people, said a spokesman for the organization, Tait Sye. More than two-thirds of the individuals are first-time donors to Planned Parenthood, Mr. Sye said, and money came in from all 50 states.