ISeek runs through multiple search engines to locate sites containing information on whatever topic you enter. After clicking on the Search button, a whole list is generated of possible sites with material related to the subject you entered. In addition, you can add, remove and update the plug-ins from within iSeek without needing to reopen it. iSeek will only display 15 search results out of a potential 200 returned until you register. In the meantime, you can access up to 15 search results. Since users of MacOS 8.5 or higher have Sherlock to aid in searches, iSeek is aimed more toward those who use the earlier versions MacOS on older Macs. But any Mac user may find it helpful.