Screen Scrapping in c#

Question

Hello,
i have some intresting question for all
if you go to www.topix.com they are displaying the topstories
and they are displaying it from all the different sources which they mentioned
it on the top of each headline like national news, the associate press etc etc..
i want some thing like that or similar to that.
remember they are not getting data from one single site they are not using rss feed
i suppose can any one help me with that. and also important thing is
not just getting the urls displaying the data is also important

i appriciate you help in advance

thanks
[email protected]