Are there websites that site past or present federal court cases that are similar?

I am working on a big paper about a specific court case dealing with Toni Locy, a reporter who would not reveal her sources about a man who may be related to the Antrax attacks. I need to research and site other cases that might relate...Thank u!Are there websites that site past or present federal court cases that are similar?
I guess you know about Lexus Nexus, if not, you have to pay for it.

shiseido