The indiscriminate spreading of information on the internet causes bad visualization and recall processes of different types of banners, since an advertisement has to capture public´s attention among many others stimuli in order to transmit its message efficiently. An experiment was conducted with 36 participants to investigate the effects of 6 types of banner and improve these processes: 4 of them occupying a specific position on the page (full-banner, leaderboard, rectangle and wide skyscraper) and 2 over-the- page banners (floating and pop-up), collecting data also from questionnaires and interviews. Results showed that the pop-up and floating types were the most recognized, but the participants found them annoying. The full-banner was the third most seen, followed by the leaderboard, both classified as preferred. No type of banner provided good indexes of message recalling. The use of banners that occupy a specific position on page is recommended, as do advertisements in papers and magazines. Preferring full-banner and leaderboard is discussed, since pop-up and floating annoy people, while rectangle and wide skyscraper did not show significant frequencies of visualization.