A few months ago, an attorney for Sarah and Bristol Palin put in an application with the U.S. Patent and Trademark Office to trademark their names. (One of many things that suggests that profit, and not the presidency, is what's motivating Palin.) For Sarah Palin, the intent was a little less clear cut than it was for her daughter, as this article in Politics Daily made clear:
For Sarah Palin's application, there are two classes of commercial service for which her name would be a registered trademark. One is for "information about political elections" and "providing a website featuring information about political issues." The second is for "educational and entertainment services ... providing motivational speaking services in the field of politics, culture, business and values."
The "Bristol Palin" application is for "educational and entertainment services, namely, providing motivational speaking services in the field of life choices."