Track weekly internet updates for keywords of your interest. Add keywords of your interest in a list and use them every time to find what was updated on internet within last 7 days. For example, you can track Justin Bieber's new music, videos and news that were added to websites within last week or a research topic until you finish your research or latest tutorials of iphone sdk. It bookmarks your interest, not your search. It also keeps your interestmarks organized so that you could find them quickly.