FeedMySearch allows you to monitor Google search results and easily track stuff that matter to you via RSS feeds. Not only does it let you monitor regular Google web search results for changes but it also lets you stay on top of the latest news, watch video sharing websites for new videos, track blogs for certain topics, and more. As soon as FeedMySearch discovers something new about the items in your watchlist it will be on your RSS feed.

Search categories include web, news, video, blogs, local, books, images, and patents. Enter the keyword, select the category you want it to watch and get the feed. Add the feed to the feedreader and you’re good to go. Apart from RSS feed, FeedMySearch gives you an option to instantly add the feed to your favorite online starpage or feedreader including Netvibes, Google Reader and My Yahoo.

The FeedMySearch RSS feed includes descriptions, images, videos and some other useful info.

Google Alerts is another web app that offers almost identical features. The only difference, Google Alerts also allows you to manage and edit your watchlist items online.
Check out FeedMySearch @ www.feedmysearch.com