This portion from the link below might give you pause: http://www.pcworld.com/article/id,129147-c,internetlegalissues/article.html If you're in the US, you have at least 2 things to worry about when setting up an online website for business: your users and the FTC.
Interesting article. According to Wikipedia, different courts have issued conflicting rulings on the issue. Also, every online business person should read the FTC's rules for e-business and the internet. http://ftc.gov/bcp/menu-internet.htm#bized