Abstract: A user creates an advertising campaign by selecting categories and building communications associated with the requisite categories selected. Each user places a bid amount on each category and when the requisite category is selected, the communications associated with the highest bid amounts are sent to recipients, typically over e-mail and/or web channels. The communications typically include text and a link, that includes the uniform resource locator (URL) of a targeted web sire associated with the user, such that when the recipient user activates the link, the browser of the recipient is directed to the targeted web site of the user.