A system and method for increasing displaying time of online advertisements. Upon receiving a search request, a search engine identifies a list of search results and displays them on one side of a result page. The search engine also obtains a list of advertisements and displays them on the other side of the result page. When a user scrolls down to look at search results at a lower portion of the result page, the list of advertisements are moved down, following the movement of the screen. Thus, at least a part of the list of advertisements continue to be displayed on the current screen. Since online advertisements are visible to the user for a longer time, there are more opportunities for the online advertisements to get the user's attention, and consequently more opportunities for the user to click on an advertisement. Thus, the efficiency of online advertising may be improved.