This is what RSS do:
"RssReader collect news in the background at user configurable intervals and warn with a little popup in the system tray that there is a new message arrived. You can click the news headline to see a short description of the news and click or open the original news web page in an RssReader browser or default browser window.
RSS (Really Simple Syndication) is a format for syndicating news." Taken from http://www.rssreader.com/rssreader.htm
You can subscribe to all website that support RSS and once they update their website with news or events, you will be first to know.

There are plenty of RSS reader which are FREE. Just search thru google and you will have a list of FREE reader.
Thank you.