7.6. Set the Web Feed Refresh Frequency
You can customize the frequency with which Internet Explorer refreshes a Web feed to suit the way you work or the nature of the feed. With most Web sites that offer a feed, the feed is updated at the same time as, or soon after, new content is posted to the site. The frequency with which this occurs varies widely: once a day, once a week, several times a day, or even several times an hour.
By default, Internet Explorer checks for an updated feed once per day. This is a reasonable schedule for a site that posts new content once or twice a day or every couple of days.
However, it is not an efficient schedule for feeds updated much more or much less frequently. For example, if a feed updates only once a week, ...