Provided is a method for providing Internet advertisement. The method provides a plurality of individual Internet advertisements included in an advertisement pool which is configured with a plurality of advertisement groups ‘G1’ to ‘Gm’ having a predetermined advertisement number rate ‘Ni’, a predetermined exposure frequency setting value ‘Ci’ and a correction coefficient ‘Ki’. An advertisement providing server, which provides one or more Internet advertisements to a web page providing server providing a web page including an Internet advertisement, calculates a CTR to the number of times the individual Internet advertisements are exposed.