The distinction between contract law and tort law calls attention to two different ways to understand ethical duties. Under a contract model, the only duties that a person owes are those that have been explicitly promised to another party. The ethical perspective that underlies tort law holds that we all owe other people certain general duties. Negligence is a central component of tort law, negligence involves a type of ethical neglect, specifically neglecting one's duty to exercise reasonable care not to harm other people. Negligence can be characterized as a failure to exercise reasonable care or ordinary vigilance that results in an injury to another. Negligence simply codifies two fundamental ethical precepts. With the advent of blogs, stealth marketing has hit the internet as well. Internet users reading a product review cannot know if the individual posing the review is a user, the product's manufacturer, or even a competitor posting a negative review just to sway consumers away from the product. Buzz marketing where people are paid to create a buzz around a new product by using it or discussing it in ways that create media or other attention, also creates the potential for unspoken conflicts of interest. Marketing experts consider stealth marketing extraordinarily effective because the consumer's guard is down.  I need more information about this topic.