If you've made use of the Internet for more than a few years, you know how quickly things can change. That change applies well to search engines, where a term searched for a month or even a week ago would not return the same results it does today. How does one keep track of updates to a particular search query? Until recently, the only way was to perform another search. Google is looking to offer another way to do it: searchable RSS feeds.
Today it has been confirmed that Google will be soon offering the ability to use an RSS feed for a particular search term, letting you be notified as soon as new pages or new results pop up. That could be very useful for things that change often - such as current events and company news.
It won't apply at first to things like a Google Image search, and Google hasn't mentioned when these RSS search feeds will be available. I would definitely like to give these a try once they are ready.