rss feed – only articles you choose?

I would like help finding a rss feed plugin that will allow me to post only articles I choose in my blog (not sidebar).

i.e if I like only one article from bbc news that I would like to post in my blog. I don’t want all the news just that one article. I would like to find many different sites that have articles about my one subject of interest.

Do I need a rrs feed plugin for that or can I just copy and paste if they offer rrs feed on their page? What are the rules for posting other people’s articles? Do I just need to give them credit and a link back?

thanks for any help. Laurel