A system and method that enables a business owner to receive leads such as phone calls or emails to their business at a prescribed cost-per-lead and a volume determined by the budget the owner is willing to allocate to the purchase. The method manages an internet based advertisement campaign, which includes performing the step of creating an internet based advertisement campaign that includes a budget parameter, a campaign duration parameter, advertisement content with a lead reference, and an ad listing with a URL that links to said advertisement content. Another embodiment of the method can include managing the bidding process for a multi-item keyword auction.