I am looking for a script that might aggregate content from different locations. I am trying to build a news page based on a particular subject and would like to make something similar to google news. Perhaps something with a filter so that I can grade what is being pulled in so that it learns what should be posted or not. What is google using to scour all of these sites for related stories. That would be something nice although I'm sure it takes a lot of horsepower. Any help is much appreciated. Thanks!