You need a new aggregator service. At least, that is what I do. I have an account at Newsgator.com and there I can set which news I want to pull in how often, etc. The service I have is free but a little confusing at first. Anyway once you have it set up the aggregator service (there are several) will give you some java script. Just drop that into your page.
You can adjust the script with your css. I have mine in a sidebar that scrolls.