AutoCAD 2009 acts as a RSS reader or aggregator. You will add your favorite RSS feeds to AutoCAD 2009. It will notify the updates of the RSS feeds with links. You can remove the RSS feeds from AutoCAD 2009 as well.
AutoCAD 2009 has a button called Infocenter at the top right corner. Refer the snap below (click on the image to enlarge it):

click to enlarge
- Notice the small downward arrow or triangle just beside the Infocenter button.
- Click on the arrow and you will get a pop up list, click on Search Settings there.
- You will get the Infocenter Settings window like one you are seeing in the snap.
- Go to RSS Feeds at the right side of the window.
- Now use Add or Remove buttons of the left side to add or remove the RSS Feeds links. And that’s it.
- Once you have added any RSS feeds link, you can see the updates of the feeds will flush out near the Infocenter button. By clicking the link there you can visit the site.